Finding the Third Proportional to 62,740.50 and 137,920

Step by Step Solution

1. Step 1: Write the proportion equation
   62,740.50 : 137,920 = 137,920 : x
2. Step 2: Convert to fraction form
   62,740.50/137,920 = 137,920/x
3. Step 3: Cross multiply
   62,740.50x = 137,920 × 137,920
4. Step 4: Simplify right side
   62,740.50x = 19,021,926,400
5. Step 5: Solve for x
   x = 19,021,926,400/62,740.50
6. Step 6: Final answer
   x = 303,184.17