Finding the Third Proportional to 222,724 and 485,648

Step by Step Solution

1. Step 1: Write the proportion equation
   222,724 : 485,648 = 485,648 : x
2. Step 2: Convert to fraction form
   222,724/485,648 = 485,648/x
3. Step 3: Cross multiply
   222,724x = 485,648 × 485,648
4. Step 4: Simplify right side
   222,724x = 235,853,979,904
5. Step 5: Solve for x
   x = 235,853,979,904/222,724
6. Step 6: Final answer
   x = 1,058,951.80