Finding the Third Proportional to 105,400 and 248,801

Step by Step Solution

1. Step 1: Write the proportion equation
   105,400 : 248,801 = 248,801 : x
2. Step 2: Convert to fraction form
   105,400/248,801 = 248,801/x
3. Step 3: Cross multiply
   105,400x = 248,801 × 248,801
4. Step 4: Simplify right side
   105,400x = 61,901,937,601
5. Step 5: Solve for x
   x = 61,901,937,601/105,400
6. Step 6: Final answer
   x = 587,304.91