Finding the Third Proportional to 11,109.66 and 18,247.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.66 : 18,247.78 = 18,247.78 : x
2. Step 2: Convert to fraction form
   11,109.66/18,247.78 = 18,247.78/x
3. Step 3: Cross multiply
   11,109.66x = 18,247.78 × 18,247.78
4. Step 4: Simplify right side
   11,109.66x = 332,981,520.55
5. Step 5: Solve for x
   x = 332,981,520.55/11,109.66
6. Step 6: Final answer
   x = 29,972.26