Combine two mysql databases into one database.

Hi, I currently have two servers each running the free hosting script Xpanel. I'd like both of these xpanel installations moved to a 3rd server. The 3rd server already has a working version of xpanel installed so no software installation will be needed. I have also moved all the data from both existing servers to the 3rd server as well. Basically I need someone who can combine the two existing mysql databases into one database. The two existing databases should be compatible since they are both from the same version of the Xpanel script. Thanks, m00d