Finding the Third Proportional to 9,642 and 13,725

Step by Step Solution

1. Step 1: Write the proportion equation
   9,642 : 13,725 = 13,725 : x
2. Step 2: Convert to fraction form
   9,642/13,725 = 13,725/x
3. Step 3: Cross multiply
   9,642x = 13,725 × 13,725
4. Step 4: Simplify right side
   9,642x = 188,375,625
5. Step 5: Solve for x
   x = 188,375,625/9,642
6. Step 6: Final answer
   x = 19,536.99