Finding the Third Proportional to 11,181.38 and 15,180.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,181.38 : 15,180.75 = 15,180.75 : x
2. Step 2: Convert to fraction form
   11,181.38/15,180.75 = 15,180.75/x
3. Step 3: Cross multiply
   11,181.38x = 15,180.75 × 15,180.75
4. Step 4: Simplify right side
   11,181.38x = 230,455,170.56
5. Step 5: Solve for x
   x = 230,455,170.56/11,181.38
6. Step 6: Final answer
   x = 20,610.63