Finding the Third Proportional to 11,485.55 and 18,049.39

Step by Step Solution

1. Step 1: Write the proportion equation
   11,485.55 : 18,049.39 = 18,049.39 : x
2. Step 2: Convert to fraction form
   11,485.55/18,049.39 = 18,049.39/x
3. Step 3: Cross multiply
   11,485.55x = 18,049.39 × 18,049.39
4. Step 4: Simplify right side
   11,485.55x = 325,780,642.94
5. Step 5: Solve for x
   x = 325,780,642.94/11,485.55
6. Step 6: Final answer
   x = 28,364.40