Finding the Third Proportional to 80,280 and 171,630

Step by Step Solution

1. Step 1: Write the proportion equation
   80,280 : 171,630 = 171,630 : x
2. Step 2: Convert to fraction form
   80,280/171,630 = 171,630/x
3. Step 3: Cross multiply
   80,280x = 171,630 × 171,630
4. Step 4: Simplify right side
   80,280x = 29,456,856,900
5. Step 5: Solve for x
   x = 29,456,856,900/80,280
6. Step 6: Final answer
   x = 366,926.47