Finding the Third Proportional to 8,816 and 13,662

Step by Step Solution

1. Step 1: Write the proportion equation
   8,816 : 13,662 = 13,662 : x
2. Step 2: Convert to fraction form
   8,816/13,662 = 13,662/x
3. Step 3: Cross multiply
   8,816x = 13,662 × 13,662
4. Step 4: Simplify right side
   8,816x = 186,650,244
5. Step 5: Solve for x
   x = 186,650,244/8,816
6. Step 6: Final answer
   x = 21,171.76