Finding the Third Proportional to 2,108.69 and 3,208.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.69 : 3,208.60 = 3,208.60 : x
2. Step 2: Convert to fraction form
   2,108.69/3,208.60 = 3,208.60/x
3. Step 3: Cross multiply
   2,108.69x = 3,208.60 × 3,208.60
4. Step 4: Simplify right side
   2,108.69x = 10,295,092.65
5. Step 5: Solve for x
   x = 10,295,092.65/2,108.69
6. Step 6: Final answer
   x = 4,882.22