Finding the Third Proportional to 222,516 and 479,988

Step by Step Solution

1. Step 1: Write the proportion equation
   222,516 : 479,988 = 479,988 : x
2. Step 2: Convert to fraction form
   222,516/479,988 = 479,988/x
3. Step 3: Cross multiply
   222,516x = 479,988 × 479,988
4. Step 4: Simplify right side
   222,516x = 230,388,480,144
5. Step 5: Solve for x
   x = 230,388,480,144/222,516
6. Step 6: Final answer
   x = 1,035,379.39