Finding the Third Proportional to 294,540 and 636,132

Step by Step Solution

1. Step 1: Write the proportion equation
   294,540 : 636,132 = 636,132 : x
2. Step 2: Convert to fraction form
   294,540/636,132 = 636,132/x
3. Step 3: Cross multiply
   294,540x = 636,132 × 636,132
4. Step 4: Simplify right side
   294,540x = 404,663,921,424
5. Step 5: Solve for x
   x = 404,663,921,424/294,540
6. Step 6: Final answer
   x = 1,373,884.43