Finding the Third Proportional to 19,802,691 and 31,509,974

Step by Step Solution

1. Step 1: Write the proportion equation
   19,802,691 : 31,509,974 = 31,509,974 : x
2. Step 2: Convert to fraction form
   19,802,691/31,509,974 = 31,509,974/x
3. Step 3: Cross multiply
   19,802,691x = 31,509,974 × 31,509,974
4. Step 4: Simplify right side
   19,802,691x = 992,878,461,480,676
5. Step 5: Solve for x
   x = 992,878,461,480,676/19,802,691
6. Step 6: Final answer
   x = 50,138,562.56