Finding the Third Proportional to 116,618 and 244,986

Step by Step Solution

1. Step 1: Write the proportion equation
   116,618 : 244,986 = 244,986 : x
2. Step 2: Convert to fraction form
   116,618/244,986 = 244,986/x
3. Step 3: Cross multiply
   116,618x = 244,986 × 244,986
4. Step 4: Simplify right side
   116,618x = 60,018,140,196
5. Step 5: Solve for x
   x = 60,018,140,196/116,618
6. Step 6: Final answer
   x = 514,655.89