Finding the Third Proportional to 102,228 and 222,456

Step by Step Solution

1. Step 1: Write the proportion equation
   102,228 : 222,456 = 222,456 : x
2. Step 2: Convert to fraction form
   102,228/222,456 = 222,456/x
3. Step 3: Cross multiply
   102,228x = 222,456 × 222,456
4. Step 4: Simplify right side
   102,228x = 49,486,671,936
5. Step 5: Solve for x
   x = 49,486,671,936/102,228
6. Step 6: Final answer
   x = 484,081.39