Finding the Third Proportional to 10,608 and 13,720

Step by Step Solution

1. Step 1: Write the proportion equation
   10,608 : 13,720 = 13,720 : x
2. Step 2: Convert to fraction form
   10,608/13,720 = 13,720/x
3. Step 3: Cross multiply
   10,608x = 13,720 × 13,720
4. Step 4: Simplify right side
   10,608x = 188,238,400
5. Step 5: Solve for x
   x = 188,238,400/10,608
6. Step 6: Final answer
   x = 17,744.95