Finding the Third Proportional to 12,892 and 17,218

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892 : 17,218 = 17,218 : x
2. Step 2: Convert to fraction form
   12,892/17,218 = 17,218/x
3. Step 3: Cross multiply
   12,892x = 17,218 × 17,218
4. Step 4: Simplify right side
   12,892x = 296,459,524
5. Step 5: Solve for x
   x = 296,459,524/12,892
6. Step 6: Final answer
   x = 22,995.62