Finding the Third Proportional to 3,942.25 and 5,481.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.25 : 5,481.38 = 5,481.38 : x
2. Step 2: Convert to fraction form
   3,942.25/5,481.38 = 5,481.38/x
3. Step 3: Cross multiply
   3,942.25x = 5,481.38 × 5,481.38
4. Step 4: Simplify right side
   3,942.25x = 30,045,471.89
5. Step 5: Solve for x
   x = 30,045,471.89/3,942.25
6. Step 6: Final answer
   x = 7,621.40