Finding the Third Proportional to 220,320 and 482,816

Step by Step Solution

1. Step 1: Write the proportion equation
   220,320 : 482,816 = 482,816 : x
2. Step 2: Convert to fraction form
   220,320/482,816 = 482,816/x
3. Step 3: Cross multiply
   220,320x = 482,816 × 482,816
4. Step 4: Simplify right side
   220,320x = 233,111,289,856
5. Step 5: Solve for x
   x = 233,111,289,856/220,320
6. Step 6: Final answer
   x = 1,058,057.78