Finding the Third Proportional to 105,498 and 248,886

Step by Step Solution

1. Step 1: Write the proportion equation
   105,498 : 248,886 = 248,886 : x
2. Step 2: Convert to fraction form
   105,498/248,886 = 248,886/x
3. Step 3: Cross multiply
   105,498x = 248,886 × 248,886
4. Step 4: Simplify right side
   105,498x = 61,944,240,996
5. Step 5: Solve for x
   x = 61,944,240,996/105,498
6. Step 6: Final answer
   x = 587,160.33