Finding the Third Proportional to 111,262 and 231,728

Step by Step Solution

1. Step 1: Write the proportion equation
   111,262 : 231,728 = 231,728 : x
2. Step 2: Convert to fraction form
   111,262/231,728 = 231,728/x
3. Step 3: Cross multiply
   111,262x = 231,728 × 231,728
4. Step 4: Simplify right side
   111,262x = 53,697,865,984
5. Step 5: Solve for x
   x = 53,697,865,984/111,262
6. Step 6: Final answer
   x = 482,625.39