Finding the Third Proportional to 3,111.75 and 4,576.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.75 : 4,576.50 = 4,576.50 : x
2. Step 2: Convert to fraction form
   3,111.75/4,576.50 = 4,576.50/x
3. Step 3: Cross multiply
   3,111.75x = 4,576.50 × 4,576.50
4. Step 4: Simplify right side
   3,111.75x = 20,944,352.25
5. Step 5: Solve for x
   x = 20,944,352.25/3,111.75
6. Step 6: Final answer
   x = 6,730.73