Finding the Third Proportional to 18,189.56 and 38,581.31

Step by Step Solution

1. Step 1: Write the proportion equation
   18,189.56 : 38,581.31 = 38,581.31 : x
2. Step 2: Convert to fraction form
   18,189.56/38,581.31 = 38,581.31/x
3. Step 3: Cross multiply
   18,189.56x = 38,581.31 × 38,581.31
4. Step 4: Simplify right side
   18,189.56x = 1,488,517,674.22
5. Step 5: Solve for x
   x = 1,488,517,674.22/18,189.56
6. Step 6: Final answer
   x = 81,833.62