Finding the Third Proportional to 80,061.50 and 173,272

Step by Step Solution

1. Step 1: Write the proportion equation
   80,061.50 : 173,272 = 173,272 : x
2. Step 2: Convert to fraction form
   80,061.50/173,272 = 173,272/x
3. Step 3: Cross multiply
   80,061.50x = 173,272 × 173,272
4. Step 4: Simplify right side
   80,061.50x = 30,023,185,984
5. Step 5: Solve for x
   x = 30,023,185,984/80,061.50
6. Step 6: Final answer
   x = 375,001.54