Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 19, 6, 37
Second row: 21, 8, 45
Third row: 72, 14, ?
(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)