Finding the Third Proportional to 111,577 and 245,267

Step by Step Solution

1. Step 1: Write the proportion equation
   111,577 : 245,267 = 245,267 : x
2. Step 2: Convert to fraction form
   111,577/245,267 = 245,267/x
3. Step 3: Cross multiply
   111,577x = 245,267 × 245,267
4. Step 4: Simplify right side
   111,577x = 60,155,901,289
5. Step 5: Solve for x
   x = 60,155,901,289/111,577
6. Step 6: Final answer
   x = 539,142.49