Finding the Third Proportional to 19,799,664 and 31,505,472

Step by Step Solution

1. Step 1: Write the proportion equation
   19,799,664 : 31,505,472 = 31,505,472 : x
2. Step 2: Convert to fraction form
   19,799,664/31,505,472 = 31,505,472/x
3. Step 3: Cross multiply
   19,799,664x = 31,505,472 × 31,505,472
4. Step 4: Simplify right side
   19,799,664x = 992,594,765,942,784
5. Step 5: Solve for x
   x = 992,594,765,942,784/19,799,664
6. Step 6: Final answer
   x = 50,131,899.51