Finding the Third Proportional to 62,864 and 137,390

Step by Step Solution

1. Step 1: Write the proportion equation
   62,864 : 137,390 = 137,390 : x
2. Step 2: Convert to fraction form
   62,864/137,390 = 137,390/x
3. Step 3: Cross multiply
   62,864x = 137,390 × 137,390
4. Step 4: Simplify right side
   62,864x = 18,876,012,100
5. Step 5: Solve for x
   x = 18,876,012,100/62,864
6. Step 6: Final answer
   x = 300,267.44