Finding the Third Proportional to 2,711.81 and 3,964.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,711.81 : 3,964.78 = 3,964.78 : x
2. Step 2: Convert to fraction form
   2,711.81/3,964.78 = 3,964.78/x
3. Step 3: Cross multiply
   2,711.81x = 3,964.78 × 3,964.78
4. Step 4: Simplify right side
   2,711.81x = 15,719,490.36
5. Step 5: Solve for x
   x = 15,719,490.36/2,711.81
6. Step 6: Final answer
   x = 5,796.67