I cannot download your ip.png attachment properly and therefore could not see what you meant in your question. I am guessing that you either need to input a "temperature" curve or a fixed value or temperature.
You should input a "temperature" which can be created by using a temperature gradient and one known temperature at a certain depth. Alternatively, you can create a "temperature" curve if you know two temperature values at two corresponding depths. This temperature curve is used to make corrections for mud, mud filtrate and mud cake resistivity values which are normally recorded at surface temperature. These resistivities are required for doing environmental corrections on your resistivity curves
LLD and
LLS.
You need an Rxo curve to do invasion correction on the LLD log to obtain Rt. If you don't have it, you will not be able to use the invasion correction chart. You can only do borehole corrections on the LLD and LLS curves. Then you will have to take this corrected LLD as your Rt.
Another possible way is to create a pseudo Rxo curve by calculating it using Archie's equation, assuming that the invaded zone is 100% flushed with mud filtrate (with a resistivity of Rmf). This Rmf must be a continuous curve generated by extrapolating the surface measured Rmf to downhole temperature as a function of depth. You can then try to use this pseudo Rxo to do the invasion correction on the LLD log. It will not be 100% accurate, but you can give it a try.