Finding the Third Proportional to 80,156.25 and 173,029.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,156.25 : 173,029.50 = 173,029.50 : x
2. Step 2: Convert to fraction form
   80,156.25/173,029.50 = 173,029.50/x
3. Step 3: Cross multiply
   80,156.25x = 173,029.50 × 173,029.50
4. Step 4: Simplify right side
   80,156.25x = 29,939,207,870.25
5. Step 5: Solve for x
   x = 29,939,207,870.25/80,156.25
6. Step 6: Final answer
   x = 373,510.59