Finding the Third Proportional to 21,690,091 and 31,703,872

Step by Step Solution

1. Step 1: Write the proportion equation
   21,690,091 : 31,703,872 = 31,703,872 : x
2. Step 2: Convert to fraction form
   21,690,091/31,703,872 = 31,703,872/x
3. Step 3: Cross multiply
   21,690,091x = 31,703,872 × 31,703,872
4. Step 4: Simplify right side
   21,690,091x = 1,005,135,499,792,384
5. Step 5: Solve for x
   x = 1,005,135,499,792,384/21,690,091
6. Step 6: Final answer
   x = 46,340,769.15