Finding the Third Proportional to 2,439.56 and 3,207.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.56 : 3,207.94 = 3,207.94 : x
2. Step 2: Convert to fraction form
   2,439.56/3,207.94 = 3,207.94/x
3. Step 3: Cross multiply
   2,439.56x = 3,207.94 × 3,207.94
4. Step 4: Simplify right side
   2,439.56x = 10,290,863.00
5. Step 5: Solve for x
   x = 10,290,863.00/2,439.56
6. Step 6: Final answer
   x = 4,218.32