Finding the Third Proportional to 21,123,876 and 31,732,518

Step by Step Solution

1. Step 1: Write the proportion equation
   21,123,876 : 31,732,518 = 31,732,518 : x
2. Step 2: Convert to fraction form
   21,123,876/31,732,518 = 31,732,518/x
3. Step 3: Cross multiply
   21,123,876x = 31,732,518 × 31,732,518
4. Step 4: Simplify right side
   21,123,876x = 1,006,952,698,620,324
5. Step 5: Solve for x
   x = 1,006,952,698,620,324/21,123,876
6. Step 6: Final answer
   x = 47,668,936.26