Is it a continental tire? Conti use inches for their tire sizing where most other manufacturers have moved to metric for 700c wheels.
28" = 700c but I'm not sure why your tire would have two other measurements on it as normally it would just say 28 x 1.25 or 28 x 1.75. 28 x 1.25 would equal 700 x 32mm and 28 x 1.75 would equal 700 x 44mm. I'm going to stick my neck out and assume that because it's a touring bike, the first one is the correct measurement as 44mm tires seem pretty wide to have on a Galaxy.