Finding the Third Proportional to 80,818.50 and 175,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,818.50 : 175,879.50 = 175,879.50 : x
2. Step 2: Convert to fraction form
   80,818.50/175,879.50 = 175,879.50/x
3. Step 3: Cross multiply
   80,818.50x = 175,879.50 × 175,879.50
4. Step 4: Simplify right side
   80,818.50x = 30,933,598,520.25
5. Step 5: Solve for x
   x = 30,933,598,520.25/80,818.50
6. Step 6: Final answer
   x = 382,753.93