Finding the Third Proportional to 39,456 and 55,498

Step by Step Solution

1. Step 1: Write the proportion equation
   39,456 : 55,498 = 55,498 : x
2. Step 2: Convert to fraction form
   39,456/55,498 = 55,498/x
3. Step 3: Cross multiply
   39,456x = 55,498 × 55,498
4. Step 4: Simplify right side
   39,456x = 3,080,028,004
5. Step 5: Solve for x
   x = 3,080,028,004/39,456
6. Step 6: Final answer
   x = 78,062.35