Finding the Third Proportional to 12,668 and 20,132

Step by Step Solution

1. Step 1: Write the proportion equation
   12,668 : 20,132 = 20,132 : x
2. Step 2: Convert to fraction form
   12,668/20,132 = 20,132/x
3. Step 3: Cross multiply
   12,668x = 20,132 × 20,132
4. Step 4: Simplify right side
   12,668x = 405,297,424
5. Step 5: Solve for x
   x = 405,297,424/12,668
6. Step 6: Final answer
   x = 31,993.80