Finding the Third Proportional to 28,268 and 60,400

Step by Step Solution

1. Step 1: Write the proportion equation
   28,268 : 60,400 = 60,400 : x
2. Step 2: Convert to fraction form
   28,268/60,400 = 60,400/x
3. Step 3: Cross multiply
   28,268x = 60,400 × 60,400
4. Step 4: Simplify right side
   28,268x = 3,648,160,000
5. Step 5: Solve for x
   x = 3,648,160,000/28,268
6. Step 6: Final answer
   x = 129,056.18