Finding the Third Proportional to 274,132.50 and 411,198

Step by Step Solution

1. Step 1: Write the proportion equation
   274,132.50 : 411,198 = 411,198 : x
2. Step 2: Convert to fraction form
   274,132.50/411,198 = 411,198/x
3. Step 3: Cross multiply
   274,132.50x = 411,198 × 411,198
4. Step 4: Simplify right side
   274,132.50x = 169,083,795,204
5. Step 5: Solve for x
   x = 169,083,795,204/274,132.50
6. Step 6: Final answer
   x = 616,795.88