Finding the Third Proportional to 3,942.50 and 5,481.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.50 : 5,481.75 = 5,481.75 : x
2. Step 2: Convert to fraction form
   3,942.50/5,481.75 = 5,481.75/x
3. Step 3: Cross multiply
   3,942.50x = 5,481.75 × 5,481.75
4. Step 4: Simplify right side
   3,942.50x = 30,049,583.06
5. Step 5: Solve for x
   x = 30,049,583.06/3,942.50
6. Step 6: Final answer
   x = 7,621.96