Finding the Third Proportional to 12,499 and 17,279

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499 : 17,279 = 17,279 : x
2. Step 2: Convert to fraction form
   12,499/17,279 = 17,279/x
3. Step 3: Cross multiply
   12,499x = 17,279 × 17,279
4. Step 4: Simplify right side
   12,499x = 298,563,841
5. Step 5: Solve for x
   x = 298,563,841/12,499
6. Step 6: Final answer
   x = 23,887.02