Finding the Third Proportional to 222,838 and 486,499

Step by Step Solution

1. Step 1: Write the proportion equation
   222,838 : 486,499 = 486,499 : x
2. Step 2: Convert to fraction form
   222,838/486,499 = 486,499/x
3. Step 3: Cross multiply
   222,838x = 486,499 × 486,499
4. Step 4: Simplify right side
   222,838x = 236,681,277,001
5. Step 5: Solve for x
   x = 236,681,277,001/222,838
6. Step 6: Final answer
   x = 1,062,122.60