Finding the Third Proportional to 217,728 and 482,112

Step by Step Solution

1. Step 1: Write the proportion equation
   217,728 : 482,112 = 482,112 : x
2. Step 2: Convert to fraction form
   217,728/482,112 = 482,112/x
3. Step 3: Cross multiply
   217,728x = 482,112 × 482,112
4. Step 4: Simplify right side
   217,728x = 232,431,980,544
5. Step 5: Solve for x
   x = 232,431,980,544/217,728
6. Step 6: Final answer
   x = 1,067,533.71