Finding the Third Proportional to 1,452.94 and 3,139.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.94 : 3,139.31 = 3,139.31 : x
2. Step 2: Convert to fraction form
   1,452.94/3,139.31 = 3,139.31/x
3. Step 3: Cross multiply
   1,452.94x = 3,139.31 × 3,139.31
4. Step 4: Simplify right side
   1,452.94x = 9,855,282.97
5. Step 5: Solve for x
   x = 9,855,282.97/1,452.94
6. Step 6: Final answer
   x = 6,783.01