Finding the Third Proportional to 8,320.50 and 18,181.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,320.50 : 18,181.69 = 18,181.69 : x
2. Step 2: Convert to fraction form
   8,320.50/18,181.69 = 18,181.69/x
3. Step 3: Cross multiply
   8,320.50x = 18,181.69 × 18,181.69
4. Step 4: Simplify right side
   8,320.50x = 330,573,760.35
5. Step 5: Solve for x
   x = 330,573,760.35/8,320.50
6. Step 6: Final answer
   x = 39,730.04