Finding the Third Proportional to 8,568 and 13,216

Step by Step Solution

1. Step 1: Write the proportion equation
   8,568 : 13,216 = 13,216 : x
2. Step 2: Convert to fraction form
   8,568/13,216 = 13,216/x
3. Step 3: Cross multiply
   8,568x = 13,216 × 13,216
4. Step 4: Simplify right side
   8,568x = 174,662,656
5. Step 5: Solve for x
   x = 174,662,656/8,568
6. Step 6: Final answer
   x = 20,385.46