Finding the Third Proportional to 19,799,660 and 31,505,466

Step by Step Solution

1. Step 1: Write the proportion equation
   19,799,660 : 31,505,466 = 31,505,466 : x
2. Step 2: Convert to fraction form
   19,799,660/31,505,466 = 31,505,466/x
3. Step 3: Cross multiply
   19,799,660x = 31,505,466 × 31,505,466
4. Step 4: Simplify right side
   19,799,660x = 992,594,387,877,156
5. Step 5: Solve for x
   x = 992,594,387,877,156/19,799,660
6. Step 6: Final answer
   x = 50,131,890.54