Finding the Third Proportional to 10,488 and 13,356

Step by Step Solution

1. Step 1: Write the proportion equation
   10,488 : 13,356 = 13,356 : x
2. Step 2: Convert to fraction form
   10,488/13,356 = 13,356/x
3. Step 3: Cross multiply
   10,488x = 13,356 × 13,356
4. Step 4: Simplify right side
   10,488x = 178,382,736
5. Step 5: Solve for x
   x = 178,382,736/10,488
6. Step 6: Final answer
   x = 17,008.27