Finding the Third Proportional to 222,912 and 480,816

Step by Step Solution

1. Step 1: Write the proportion equation
   222,912 : 480,816 = 480,816 : x
2. Step 2: Convert to fraction form
   222,912/480,816 = 480,816/x
3. Step 3: Cross multiply
   222,912x = 480,816 × 480,816
4. Step 4: Simplify right side
   222,912x = 231,184,025,856
5. Step 5: Solve for x
   x = 231,184,025,856/222,912
6. Step 6: Final answer
   x = 1,037,108.93