Finding the Third Proportional to 2,815.69 and 4,055.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.69 : 4,055.81 = 4,055.81 : x
2. Step 2: Convert to fraction form
   2,815.69/4,055.81 = 4,055.81/x
3. Step 3: Cross multiply
   2,815.69x = 4,055.81 × 4,055.81
4. Step 4: Simplify right side
   2,815.69x = 16,449,615.04
5. Step 5: Solve for x
   x = 16,449,615.04/2,815.69
6. Step 6: Final answer
   x = 5,842.13