Finding the Third Proportional to 1,386.75 and 3,004.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.75 : 3,004.31 = 3,004.31 : x
2. Step 2: Convert to fraction form
   1,386.75/3,004.31 = 3,004.31/x
3. Step 3: Cross multiply
   1,386.75x = 3,004.31 × 3,004.31
4. Step 4: Simplify right side
   1,386.75x = 9,025,893.60
5. Step 5: Solve for x
   x = 9,025,893.60/1,386.75
6. Step 6: Final answer
   x = 6,508.67