Finding the Third Proportional to 137,375 and 289,510

Step by Step Solution

1. Step 1: Write the proportion equation
   137,375 : 289,510 = 289,510 : x
2. Step 2: Convert to fraction form
   137,375/289,510 = 289,510/x
3. Step 3: Cross multiply
   137,375x = 289,510 × 289,510
4. Step 4: Simplify right side
   137,375x = 83,816,040,100
5. Step 5: Solve for x
   x = 83,816,040,100/137,375
6. Step 6: Final answer
   x = 610,125.86