Finding the Third Proportional to 8,440 and 17,200

Step by Step Solution

1. Step 1: Write the proportion equation
   8,440 : 17,200 = 17,200 : x
2. Step 2: Convert to fraction form
   8,440/17,200 = 17,200/x
3. Step 3: Cross multiply
   8,440x = 17,200 × 17,200
4. Step 4: Simplify right side
   8,440x = 295,840,000
5. Step 5: Solve for x
   x = 295,840,000/8,440
6. Step 6: Final answer
   x = 35,052.13