Finding the Third Proportional to 12,609.42 and 20,144.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,609.42 : 20,144.32 = 20,144.32 : x
2. Step 2: Convert to fraction form
   12,609.42/20,144.32 = 20,144.32/x
3. Step 3: Cross multiply
   12,609.42x = 20,144.32 × 20,144.32
4. Step 4: Simplify right side
   12,609.42x = 405,793,640.85
5. Step 5: Solve for x
   x = 405,793,640.85/12,609.42
6. Step 6: Final answer
   x = 32,181.78