Finding the Third Proportional to 80,176.50 and 173,200.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,176.50 : 173,200.50 = 173,200.50 : x
2. Step 2: Convert to fraction form
   80,176.50/173,200.50 = 173,200.50/x
3. Step 3: Cross multiply
   80,176.50x = 173,200.50 × 173,200.50
4. Step 4: Simplify right side
   80,176.50x = 29,998,413,200.25
5. Step 5: Solve for x
   x = 29,998,413,200.25/80,176.50
6. Step 6: Final answer
   x = 374,154.69