Finding the Third Proportional to 80,275.50 and 123,432.75

Step by Step Solution

1. Step 1: Write the proportion equation
   80,275.50 : 123,432.75 = 123,432.75 : x
2. Step 2: Convert to fraction form
   80,275.50/123,432.75 = 123,432.75/x
3. Step 3: Cross multiply
   80,275.50x = 123,432.75 × 123,432.75
4. Step 4: Simplify right side
   80,275.50x = 15,235,643,772.56
5. Step 5: Solve for x
   x = 15,235,643,772.56/80,275.50
6. Step 6: Final answer
   x = 189,791.95