Finding the Third Proportional to 11,730.38 and 18,189.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,730.38 : 18,189.56 = 18,189.56 : x
2. Step 2: Convert to fraction form
   11,730.38/18,189.56 = 18,189.56/x
3. Step 3: Cross multiply
   11,730.38x = 18,189.56 × 18,189.56
4. Step 4: Simplify right side
   11,730.38x = 330,860,183.94
5. Step 5: Solve for x
   x = 330,860,183.94/11,730.38
6. Step 6: Final answer
   x = 28,205.42