Finding the Third Proportional to 134,545.50 and 288,414

Step by Step Solution

1. Step 1: Write the proportion equation
   134,545.50 : 288,414 = 288,414 : x
2. Step 2: Convert to fraction form
   134,545.50/288,414 = 288,414/x
3. Step 3: Cross multiply
   134,545.50x = 288,414 × 288,414
4. Step 4: Simplify right side
   134,545.50x = 83,182,635,396
5. Step 5: Solve for x
   x = 83,182,635,396/134,545.50
6. Step 6: Final answer
   x = 618,249.11