Finding the Third Proportional to 12,426 and 17,019

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426 : 17,019 = 17,019 : x
2. Step 2: Convert to fraction form
   12,426/17,019 = 17,019/x
3. Step 3: Cross multiply
   12,426x = 17,019 × 17,019
4. Step 4: Simplify right side
   12,426x = 289,646,361
5. Step 5: Solve for x
   x = 289,646,361/12,426
6. Step 6: Final answer
   x = 23,309.70