Finding the Third Proportional to 222,102 and 485,628

Step by Step Solution

1. Step 1: Write the proportion equation
   222,102 : 485,628 = 485,628 : x
2. Step 2: Convert to fraction form
   222,102/485,628 = 485,628/x
3. Step 3: Cross multiply
   222,102x = 485,628 × 485,628
4. Step 4: Simplify right side
   222,102x = 235,834,554,384
5. Step 5: Solve for x
   x = 235,834,554,384/222,102
6. Step 6: Final answer
   x = 1,061,829.94