Finding the Third Proportional to 12,021.75 and 18,246.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,021.75 : 18,246.38 = 18,246.38 : x
2. Step 2: Convert to fraction form
   12,021.75/18,246.38 = 18,246.38/x
3. Step 3: Cross multiply
   12,021.75x = 18,246.38 × 18,246.38
4. Step 4: Simplify right side
   12,021.75x = 332,930,200.64
5. Step 5: Solve for x
   x = 332,930,200.64/12,021.75
6. Step 6: Final answer
   x = 27,693.99