Finding the Third Proportional to 216,879 and 333,774

Step by Step Solution

1. Step 1: Write the proportion equation
   216,879 : 333,774 = 333,774 : x
2. Step 2: Convert to fraction form
   216,879/333,774 = 333,774/x
3. Step 3: Cross multiply
   216,879x = 333,774 × 333,774
4. Step 4: Simplify right side
   216,879x = 111,405,083,076
5. Step 5: Solve for x
   x = 111,405,083,076/216,879
6. Step 6: Final answer
   x = 513,673.91