Finding the Third Proportional to 12,561 and 17,059

Step by Step Solution

1. Step 1: Write the proportion equation
   12,561 : 17,059 = 17,059 : x
2. Step 2: Convert to fraction form
   12,561/17,059 = 17,059/x
3. Step 3: Cross multiply
   12,561x = 17,059 × 17,059
4. Step 4: Simplify right side
   12,561x = 291,009,481
5. Step 5: Solve for x
   x = 291,009,481/12,561
6. Step 6: Final answer
   x = 23,167.70