Finding the Third Proportional to 39,449.25 and 55,488.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,449.25 : 55,488.38 = 55,488.38 : x
2. Step 2: Convert to fraction form
   39,449.25/55,488.38 = 55,488.38/x
3. Step 3: Cross multiply
   39,449.25x = 55,488.38 × 55,488.38
4. Step 4: Simplify right side
   39,449.25x = 3,078,959,760.14
5. Step 5: Solve for x
   x = 3,078,959,760.14/39,449.25
6. Step 6: Final answer
   x = 78,048.63