Finding the Third Proportional to 11,443.78 and 18,361.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,443.78 : 18,361.69 = 18,361.69 : x
2. Step 2: Convert to fraction form
   11,443.78/18,361.69 = 18,361.69/x
3. Step 3: Cross multiply
   11,443.78x = 18,361.69 × 18,361.69
4. Step 4: Simplify right side
   11,443.78x = 337,151,567.85
5. Step 5: Solve for x
   x = 337,151,567.85/11,443.78
6. Step 6: Final answer
   x = 29,461.55