Finding the Third Proportional to 12,790 and 17,169

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790 : 17,169 = 17,169 : x
2. Step 2: Convert to fraction form
   12,790/17,169 = 17,169/x
3. Step 3: Cross multiply
   12,790x = 17,169 × 17,169
4. Step 4: Simplify right side
   12,790x = 294,774,561
5. Step 5: Solve for x
   x = 294,774,561/12,790
6. Step 6: Final answer
   x = 23,047.27