Finding the Third Proportional to 80,251.50 and 169,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,251.50 : 169,456.50 = 169,456.50 : x
2. Step 2: Convert to fraction form
   80,251.50/169,456.50 = 169,456.50/x
3. Step 3: Cross multiply
   80,251.50x = 169,456.50 × 169,456.50
4. Step 4: Simplify right side
   80,251.50x = 28,715,505,392.25
5. Step 5: Solve for x
   x = 28,715,505,392.25/80,251.50
6. Step 6: Final answer
   x = 357,818.92