Finding the Third Proportional to 12,672 and 17,088

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672 : 17,088 = 17,088 : x
2. Step 2: Convert to fraction form
   12,672/17,088 = 17,088/x
3. Step 3: Cross multiply
   12,672x = 17,088 × 17,088
4. Step 4: Simplify right side
   12,672x = 291,999,744
5. Step 5: Solve for x
   x = 291,999,744/12,672
6. Step 6: Final answer
   x = 23,042.91