Finding the Third Proportional to 11,942.44 and 18,415.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,942.44 : 18,415.69 = 18,415.69 : x
2. Step 2: Convert to fraction form
   11,942.44/18,415.69 = 18,415.69/x
3. Step 3: Cross multiply
   11,942.44x = 18,415.69 × 18,415.69
4. Step 4: Simplify right side
   11,942.44x = 339,137,546.10
5. Step 5: Solve for x
   x = 339,137,546.10/11,942.44
6. Step 6: Final answer
   x = 28,397.68