Finding the Third Proportional to 223,968 and 485,856

Step by Step Solution

1. Step 1: Write the proportion equation
   223,968 : 485,856 = 485,856 : x
2. Step 2: Convert to fraction form
   223,968/485,856 = 485,856/x
3. Step 3: Cross multiply
   223,968x = 485,856 × 485,856
4. Step 4: Simplify right side
   223,968x = 236,056,052,736
5. Step 5: Solve for x
   x = 236,056,052,736/223,968
6. Step 6: Final answer
   x = 1,053,972.23