Finding the Third Proportional to 222,192 and 485,028

Step by Step Solution

1. Step 1: Write the proportion equation
   222,192 : 485,028 = 485,028 : x
2. Step 2: Convert to fraction form
   222,192/485,028 = 485,028/x
3. Step 3: Cross multiply
   222,192x = 485,028 × 485,028
4. Step 4: Simplify right side
   222,192x = 235,252,160,784
5. Step 5: Solve for x
   x = 235,252,160,784/222,192
6. Step 6: Final answer
   x = 1,058,778.72