Finding the Third Proportional to 216,618 and 475,080

Step by Step Solution

1. Step 1: Write the proportion equation
   216,618 : 475,080 = 475,080 : x
2. Step 2: Convert to fraction form
   216,618/475,080 = 475,080/x
3. Step 3: Cross multiply
   216,618x = 475,080 × 475,080
4. Step 4: Simplify right side
   216,618x = 225,701,006,400
5. Step 5: Solve for x
   x = 225,701,006,400/216,618
6. Step 6: Final answer
   x = 1,041,930.99