Finding the Third Proportional to 2,798.72 and 4,429.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.72 : 4,429.69 = 4,429.69 : x
2. Step 2: Convert to fraction form
   2,798.72/4,429.69 = 4,429.69/x
3. Step 3: Cross multiply
   2,798.72x = 4,429.69 × 4,429.69
4. Step 4: Simplify right side
   2,798.72x = 19,622,131.35
5. Step 5: Solve for x
   x = 19,622,131.35/2,798.72
6. Step 6: Final answer
   x = 7,011.11