Finding the Third Proportional to 39,449 and 55,488

Step by Step Solution

1. Step 1: Write the proportion equation
   39,449 : 55,488 = 55,488 : x
2. Step 2: Convert to fraction form
   39,449/55,488 = 55,488/x
3. Step 3: Cross multiply
   39,449x = 55,488 × 55,488
4. Step 4: Simplify right side
   39,449x = 3,078,918,144
5. Step 5: Solve for x
   x = 3,078,918,144/39,449
6. Step 6: Final answer
   x = 78,048.07