Finding the Third Proportional to 39,405.50 and 59,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,405.50 : 59,149.50 = 59,149.50 : x
2. Step 2: Convert to fraction form
   39,405.50/59,149.50 = 59,149.50/x
3. Step 3: Cross multiply
   39,405.50x = 59,149.50 × 59,149.50
4. Step 4: Simplify right side
   39,405.50x = 3,498,663,350.25
5. Step 5: Solve for x
   x = 3,498,663,350.25/39,405.50
6. Step 6: Final answer
   x = 88,786.17