Finding the Third Proportional to 222,140 and 479,760

Step by Step Solution

1. Step 1: Write the proportion equation
   222,140 : 479,760 = 479,760 : x
2. Step 2: Convert to fraction form
   222,140/479,760 = 479,760/x
3. Step 3: Cross multiply
   222,140x = 479,760 × 479,760
4. Step 4: Simplify right side
   222,140x = 230,169,657,600
5. Step 5: Solve for x
   x = 230,169,657,600/222,140
6. Step 6: Final answer
   x = 1,036,146.83