Finding the Third Proportional to 231,856 and 488,618

Step by Step Solution

1. Step 1: Write the proportion equation
   231,856 : 488,618 = 488,618 : x
2. Step 2: Convert to fraction form
   231,856/488,618 = 488,618/x
3. Step 3: Cross multiply
   231,856x = 488,618 × 488,618
4. Step 4: Simplify right side
   231,856x = 238,747,549,924
5. Step 5: Solve for x
   x = 238,747,549,924/231,856
6. Step 6: Final answer
   x = 1,029,723.41