Finding the Third Proportional to 113,436 and 248,580

Step by Step Solution

1. Step 1: Write the proportion equation
   113,436 : 248,580 = 248,580 : x
2. Step 2: Convert to fraction form
   113,436/248,580 = 248,580/x
3. Step 3: Cross multiply
   113,436x = 248,580 × 248,580
4. Step 4: Simplify right side
   113,436x = 61,792,016,400
5. Step 5: Solve for x
   x = 61,792,016,400/113,436
6. Step 6: Final answer
   x = 544,730.21