Finding the Third Proportional to 39,662.25 and 86,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,662.25 : 86,425.50 = 86,425.50 : x
2. Step 2: Convert to fraction form
   39,662.25/86,425.50 = 86,425.50/x
3. Step 3: Cross multiply
   39,662.25x = 86,425.50 × 86,425.50
4. Step 4: Simplify right side
   39,662.25x = 7,469,367,050.25
5. Step 5: Solve for x
   x = 7,469,367,050.25/39,662.25
6. Step 6: Final answer
   x = 188,324.34