Finding the Third Proportional to 25,920 and 57,200

Step by Step Solution

1. Step 1: Write the proportion equation
   25,920 : 57,200 = 57,200 : x
2. Step 2: Convert to fraction form
   25,920/57,200 = 57,200/x
3. Step 3: Cross multiply
   25,920x = 57,200 × 57,200
4. Step 4: Simplify right side
   25,920x = 3,271,840,000
5. Step 5: Solve for x
   x = 3,271,840,000/25,920
6. Step 6: Final answer
   x = 126,228.40