Finding the Third Proportional to 12,892 and 20,426

Step by Step Solution

1. Step 1: Write the proportion equation
   12,892 : 20,426 = 20,426 : x
2. Step 2: Convert to fraction form
   12,892/20,426 = 20,426/x
3. Step 3: Cross multiply
   12,892x = 20,426 × 20,426
4. Step 4: Simplify right side
   12,892x = 417,221,476
5. Step 5: Solve for x
   x = 417,221,476/12,892
6. Step 6: Final answer
   x = 32,362.82