Finding the Third Proportional to 2,720.81 and 4,849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.81 : 4,849.31 = 4,849.31 : x
2. Step 2: Convert to fraction form
   2,720.81/4,849.31 = 4,849.31/x
3. Step 3: Cross multiply
   2,720.81x = 4,849.31 × 4,849.31
4. Step 4: Simplify right side
   2,720.81x = 23,515,831.72
5. Step 5: Solve for x
   x = 23,515,831.72/2,720.81
6. Step 6: Final answer
   x = 8,642.94