Finding the Third Proportional to 222,388 and 486,308

Step by Step Solution

1. Step 1: Write the proportion equation
   222,388 : 486,308 = 486,308 : x
2. Step 2: Convert to fraction form
   222,388/486,308 = 486,308/x
3. Step 3: Cross multiply
   222,388x = 486,308 × 486,308
4. Step 4: Simplify right side
   222,388x = 236,495,470,864
5. Step 5: Solve for x
   x = 236,495,470,864/222,388
6. Step 6: Final answer
   x = 1,063,436.30