Finding the Third Proportional to 111,435 and 235,170

Step by Step Solution

1. Step 1: Write the proportion equation
   111,435 : 235,170 = 235,170 : x
2. Step 2: Convert to fraction form
   111,435/235,170 = 235,170/x
3. Step 3: Cross multiply
   111,435x = 235,170 × 235,170
4. Step 4: Simplify right side
   111,435x = 55,304,928,900
5. Step 5: Solve for x
   x = 55,304,928,900/111,435
6. Step 6: Final answer
   x = 496,297.65