Finding the Third Proportional to 137,484 and 291,240

Step by Step Solution

1. Step 1: Write the proportion equation
   137,484 : 291,240 = 291,240 : x
2. Step 2: Convert to fraction form
   137,484/291,240 = 291,240/x
3. Step 3: Cross multiply
   137,484x = 291,240 × 291,240
4. Step 4: Simplify right side
   137,484x = 84,820,737,600
5. Step 5: Solve for x
   x = 84,820,737,600/137,484
6. Step 6: Final answer
   x = 616,949.88