Finding the Third Proportional to 20,139 and 26,499

Step by Step Solution

1. Step 1: Write the proportion equation
   20,139 : 26,499 = 26,499 : x
2. Step 2: Convert to fraction form
   20,139/26,499 = 26,499/x
3. Step 3: Cross multiply
   20,139x = 26,499 × 26,499
4. Step 4: Simplify right side
   20,139x = 702,197,001
5. Step 5: Solve for x
   x = 702,197,001/20,139
6. Step 6: Final answer
   x = 34,867.52