Finding the Third Proportional to 173,229.50 and 379,561

Step by Step Solution

1. Step 1: Write the proportion equation
   173,229.50 : 379,561 = 379,561 : x
2. Step 2: Convert to fraction form
   173,229.50/379,561 = 379,561/x
3. Step 3: Cross multiply
   173,229.50x = 379,561 × 379,561
4. Step 4: Simplify right side
   173,229.50x = 144,066,552,721
5. Step 5: Solve for x
   x = 144,066,552,721/173,229.50
6. Step 6: Final answer
   x = 831,651.38