Finding the Third Proportional to 222,722 and 485,644

Step by Step Solution

1. Step 1: Write the proportion equation
   222,722 : 485,644 = 485,644 : x
2. Step 2: Convert to fraction form
   222,722/485,644 = 485,644/x
3. Step 3: Cross multiply
   222,722x = 485,644 × 485,644
4. Step 4: Simplify right side
   222,722x = 235,850,094,736
5. Step 5: Solve for x
   x = 235,850,094,736/222,722
6. Step 6: Final answer
   x = 1,058,943.86