Finding the Third Proportional to 62,872 and 137,404

Step by Step Solution

1. Step 1: Write the proportion equation
   62,872 : 137,404 = 137,404 : x
2. Step 2: Convert to fraction form
   62,872/137,404 = 137,404/x
3. Step 3: Cross multiply
   62,872x = 137,404 × 137,404
4. Step 4: Simplify right side
   62,872x = 18,879,859,216
5. Step 5: Solve for x
   x = 18,879,859,216/62,872
6. Step 6: Final answer
   x = 300,290.42