Finding the Third Proportional to 3,608.72 and 5,399.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.72 : 5,399.16 = 5,399.16 : x
2. Step 2: Convert to fraction form
   3,608.72/5,399.16 = 5,399.16/x
3. Step 3: Cross multiply
   3,608.72x = 5,399.16 × 5,399.16
4. Step 4: Simplify right side
   3,608.72x = 29,150,888.21
5. Step 5: Solve for x
   x = 29,150,888.21/3,608.72
6. Step 6: Final answer
   x = 8,077.91