Finding the Third Proportional to 2,639.25 and 3,935.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.25 : 3,935.25 = 3,935.25 : x
2. Step 2: Convert to fraction form
   2,639.25/3,935.25 = 3,935.25/x
3. Step 3: Cross multiply
   2,639.25x = 3,935.25 × 3,935.25
4. Step 4: Simplify right side
   2,639.25x = 15,486,192.56
5. Step 5: Solve for x
   x = 15,486,192.56/2,639.25
6. Step 6: Final answer
   x = 5,867.65