Finding the Third Proportional to 13,920 and 17,600

Step by Step Solution

1. Step 1: Write the proportion equation
   13,920 : 17,600 = 17,600 : x
2. Step 2: Convert to fraction form
   13,920/17,600 = 17,600/x
3. Step 3: Cross multiply
   13,920x = 17,600 × 17,600
4. Step 4: Simplify right side
   13,920x = 309,760,000
5. Step 5: Solve for x
   x = 309,760,000/13,920
6. Step 6: Final answer
   x = 22,252.87