Finding the Third Proportional to 80,545.50 and 123,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,545.50 : 123,610.50 = 123,610.50 : x
2. Step 2: Convert to fraction form
   80,545.50/123,610.50 = 123,610.50/x
3. Step 3: Cross multiply
   80,545.50x = 123,610.50 × 123,610.50
4. Step 4: Simplify right side
   80,545.50x = 15,279,555,710.25
5. Step 5: Solve for x
   x = 15,279,555,710.25/80,545.50
6. Step 6: Final answer
   x = 189,700.92