Finding the Third Proportional to 636,360 and 1,384,872

Step by Step Solution

1. Step 1: Write the proportion equation
   636,360 : 1,384,872 = 1,384,872 : x
2. Step 2: Convert to fraction form
   636,360/1,384,872 = 1,384,872/x
3. Step 3: Cross multiply
   636,360x = 1,384,872 × 1,384,872
4. Step 4: Simplify right side
   636,360x = 1,917,870,456,384
5. Step 5: Solve for x
   x = 1,917,870,456,384/636,360
6. Step 6: Final answer
   x = 3,013,813.65