It is pretty late now compared to when you posted this earlier this evening.
Just temp match your water when you put it back into the tank out of the faucet. Messing with the temp on the heaters once they are set, is something I try to do very little of.
Any way just set the temp back to 78F or which ever temp you normally have and you do a 25-33% pwc
and add slightly, like 2-4 degrees less, add a bucket, then wait a bit and add the next bucket of water but huge changes in temp aren't ideal.
You can let the water cool by itself.
The other option is to reduce 2 degrees per day, but that high of temp is too dangerous for the fish.