Finding the Third Proportional to 2,608.13 and 3,910.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.13 : 3,910.69 = 3,910.69 : x
2. Step 2: Convert to fraction form
   2,608.13/3,910.69 = 3,910.69/x
3. Step 3: Cross multiply
   2,608.13x = 3,910.69 × 3,910.69
4. Step 4: Simplify right side
   2,608.13x = 15,293,476.72
5. Step 5: Solve for x
   x = 15,293,476.72/2,608.13
6. Step 6: Final answer
   x = 5,863.78