Finding the Third Proportional to 39,280.25 and 84,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,280.25 : 84,785.50 = 84,785.50 : x
2. Step 2: Convert to fraction form
   39,280.25/84,785.50 = 84,785.50/x
3. Step 3: Cross multiply
   39,280.25x = 84,785.50 × 84,785.50
4. Step 4: Simplify right side
   39,280.25x = 7,188,581,010.25
5. Step 5: Solve for x
   x = 7,188,581,010.25/39,280.25
6. Step 6: Final answer
   x = 183,007.52