Finding the Third Proportional to 2,924.50 and 3,939.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,924.50 : 3,939.50 = 3,939.50 : x
2. Step 2: Convert to fraction form
   2,924.50/3,939.50 = 3,939.50/x
3. Step 3: Cross multiply
   2,924.50x = 3,939.50 × 3,939.50
4. Step 4: Simplify right side
   2,924.50x = 15,519,660.25
5. Step 5: Solve for x
   x = 15,519,660.25/2,924.50
6. Step 6: Final answer
   x = 5,306.77