Finding the Third Proportional to 20,864,939 and 31,916,996

Step by Step Solution

1. Step 1: Write the proportion equation
   20,864,939 : 31,916,996 = 31,916,996 : x
2. Step 2: Convert to fraction form
   20,864,939/31,916,996 = 31,916,996/x
3. Step 3: Cross multiply
   20,864,939x = 31,916,996 × 31,916,996
4. Step 4: Simplify right side
   20,864,939x = 1,018,694,633,664,016
5. Step 5: Solve for x
   x = 1,018,694,633,664,016/20,864,939
6. Step 6: Final answer
   x = 48,823,273.99