Finding the Third Proportional to 12,897 and 17,400

Step by Step Solution

1. Step 1: Write the proportion equation
   12,897 : 17,400 = 17,400 : x
2. Step 2: Convert to fraction form
   12,897/17,400 = 17,400/x
3. Step 3: Cross multiply
   12,897x = 17,400 × 17,400
4. Step 4: Simplify right side
   12,897x = 302,760,000
5. Step 5: Solve for x
   x = 302,760,000/12,897
6. Step 6: Final answer
   x = 23,475.23