Finding the Third Proportional to 7,108 and 10,400

Step by Step Solution

1. Step 1: Write the proportion equation
   7,108 : 10,400 = 10,400 : x
2. Step 2: Convert to fraction form
   7,108/10,400 = 10,400/x
3. Step 3: Cross multiply
   7,108x = 10,400 × 10,400
4. Step 4: Simplify right side
   7,108x = 108,160,000
5. Step 5: Solve for x
   x = 108,160,000/7,108
6. Step 6: Final answer
   x = 15,216.66