Finding the Third Proportional to 132,456 and 285,648

Step by Step Solution

1. Step 1: Write the proportion equation
   132,456 : 285,648 = 285,648 : x
2. Step 2: Convert to fraction form
   132,456/285,648 = 285,648/x
3. Step 3: Cross multiply
   132,456x = 285,648 × 285,648
4. Step 4: Simplify right side
   132,456x = 81,594,779,904
5. Step 5: Solve for x
   x = 81,594,779,904/132,456
6. Step 6: Final answer
   x = 616,014.22