54 times 123 = 6 times 123 times
what is the missing number

If you mean the sum:
54 x 123 = 6642
6 x 9 = 54
6 x 9 x 123 = 6642

The missing number would be 9 because 54 times 123 equals 6642 so to make the equations equal you have to do 6 times 123 times 9 so both equations balance. i found the answer by multiplying 123 by 6 and dividing the number by 6624

2160ft^3 i think you could use a formala to you out with this in the future