Finding the Third Proportional to 636,166 and 1,386,648

Step by Step Solution

1. Step 1: Write the proportion equation
   636,166 : 1,386,648 = 1,386,648 : x
2. Step 2: Convert to fraction form
   636,166/1,386,648 = 1,386,648/x
3. Step 3: Cross multiply
   636,166x = 1,386,648 × 1,386,648
4. Step 4: Simplify right side
   636,166x = 1,922,792,675,904
5. Step 5: Solve for x
   x = 1,922,792,675,904/636,166
6. Step 6: Final answer
   x = 3,022,470.04