Finding the Third Proportional to 20,067.43 and 31,139.12

Step by Step Solution

1. Step 1: Write the proportion equation
   20,067.43 : 31,139.12 = 31,139.12 : x
2. Step 2: Convert to fraction form
   20,067.43/31,139.12 = 31,139.12/x
3. Step 3: Cross multiply
   20,067.43x = 31,139.12 × 31,139.12
4. Step 4: Simplify right side
   20,067.43x = 969,644,862.49
5. Step 5: Solve for x
   x = 969,644,862.49/20,067.43
6. Step 6: Final answer
   x = 48,319.33