Finding the Third Proportional to 215,618 and 468,530

Step by Step Solution

1. Step 1: Write the proportion equation
   215,618 : 468,530 = 468,530 : x
2. Step 2: Convert to fraction form
   215,618/468,530 = 468,530/x
3. Step 3: Cross multiply
   215,618x = 468,530 × 468,530
4. Step 4: Simplify right side
   215,618x = 219,520,360,900
5. Step 5: Solve for x
   x = 219,520,360,900/215,618
6. Step 6: Final answer
   x = 1,018,098.49