Finding the Third Proportional to 28,400 and 62,510

Step by Step Solution

1. Step 1: Write the proportion equation
   28,400 : 62,510 = 62,510 : x
2. Step 2: Convert to fraction form
   28,400/62,510 = 62,510/x
3. Step 3: Cross multiply
   28,400x = 62,510 × 62,510
4. Step 4: Simplify right side
   28,400x = 3,907,500,100
5. Step 5: Solve for x
   x = 3,907,500,100/28,400
6. Step 6: Final answer
   x = 137,588.03