Finding the Third Proportional to 39,717.25 and 58,239.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,717.25 : 58,239.38 = 58,239.38 : x
2. Step 2: Convert to fraction form
   39,717.25/58,239.38 = 58,239.38/x
3. Step 3: Cross multiply
   39,717.25x = 58,239.38 × 58,239.38
4. Step 4: Simplify right side
   39,717.25x = 3,391,824,800.39
5. Step 5: Solve for x
   x = 3,391,824,800.39/39,717.25
6. Step 6: Final answer
   x = 85,399.29