Finding the Third Proportional to 222,320 and 486,804

Step by Step Solution

1. Step 1: Write the proportion equation
   222,320 : 486,804 = 486,804 : x
2. Step 2: Convert to fraction form
   222,320/486,804 = 486,804/x
3. Step 3: Cross multiply
   222,320x = 486,804 × 486,804
4. Step 4: Simplify right side
   222,320x = 236,978,134,416
5. Step 5: Solve for x
   x = 236,978,134,416/222,320
6. Step 6: Final answer
   x = 1,065,932.59