Finding the Third Proportional to 223,844 and 485,540

Step by Step Solution

1. Step 1: Write the proportion equation
   223,844 : 485,540 = 485,540 : x
2. Step 2: Convert to fraction form
   223,844/485,540 = 485,540/x
3. Step 3: Cross multiply
   223,844x = 485,540 × 485,540
4. Step 4: Simplify right side
   223,844x = 235,749,091,600
5. Step 5: Solve for x
   x = 235,749,091,600/223,844
6. Step 6: Final answer
   x = 1,053,184.77