Finding the Third Proportional to 18,198.56 and 39,600.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,198.56 : 39,600.56 = 39,600.56 : x
2. Step 2: Convert to fraction form
   18,198.56/39,600.56 = 39,600.56/x
3. Step 3: Cross multiply
   18,198.56x = 39,600.56 × 39,600.56
4. Step 4: Simplify right side
   18,198.56x = 1,568,204,550.32
5. Step 5: Solve for x
   x = 1,568,204,550.32/18,198.56
6. Step 6: Final answer
   x = 86,171.89