Finding the Third Proportional to 8,495.30 and 18,221.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,495.30 : 18,221.20 = 18,221.20 : x
2. Step 2: Convert to fraction form
   8,495.30/18,221.20 = 18,221.20/x
3. Step 3: Cross multiply
   8,495.30x = 18,221.20 × 18,221.20
4. Step 4: Simplify right side
   8,495.30x = 332,012,243.32
5. Step 5: Solve for x
   x = 332,012,243.32/8,495.30
6. Step 6: Final answer
   x = 39,081.89