Finding the Third Proportional to 1,439.72 and 3,153.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439.72 : 3,153.52 = 3,153.52 : x
2. Step 2: Convert to fraction form
   1,439.72/3,153.52 = 3,153.52/x
3. Step 3: Cross multiply
   1,439.72x = 3,153.52 × 3,153.52
4. Step 4: Simplify right side
   1,439.72x = 9,944,660.80
5. Step 5: Solve for x
   x = 9,944,660.80/1,439.72
6. Step 6: Final answer
   x = 6,907.36