Finding the Third Proportional to 8,714.25 and 18,658.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,714.25 : 18,658.69 = 18,658.69 : x
2. Step 2: Convert to fraction form
   8,714.25/18,658.69 = 18,658.69/x
3. Step 3: Cross multiply
   8,714.25x = 18,658.69 × 18,658.69
4. Step 4: Simplify right side
   8,714.25x = 348,146,619.22
5. Step 5: Solve for x
   x = 348,146,619.22/8,714.25
6. Step 6: Final answer
   x = 39,951.42