Why did they take Color Match away? I am also trying match 3 cameras - it was simple with color match. Frustrating.
CORRECTION: I just discovered SpeedGrade - it is a much better way to do it - looks almost perfect now, despite 2 of the cameras being cell phones and the main is a decent pro-sumer camera (HMC150)
View the RGB parade in the Program monitor and use the RGB function in the RGB Color Corrector to make changes.
Of course, you will have to do a little homework to know how everything functions. If you know how to match all the RGB curves you can get very close with the RGB color corrector.
PP's color correcting tools are not ideal, but if you put in the time you can get acceptable results.