Finding the Third Proportional to 2,796.40 and 3,919.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.40 : 3,919.96 = 3,919.96 : x
2. Step 2: Convert to fraction form
   2,796.40/3,919.96 = 3,919.96/x
3. Step 3: Cross multiply
   2,796.40x = 3,919.96 × 3,919.96
4. Step 4: Simplify right side
   2,796.40x = 15,366,063.13
5. Step 5: Solve for x
   x = 15,366,063.13/2,796.40
6. Step 6: Final answer
   x = 5,494.95