Finding the Third Proportional to 636,186 and 1,386,684

Step by Step Solution

1. Step 1: Write the proportion equation
   636,186 : 1,386,684 = 1,386,684 : x
2. Step 2: Convert to fraction form
   636,186/1,386,684 = 1,386,684/x
3. Step 3: Cross multiply
   636,186x = 1,386,684 × 1,386,684
4. Step 4: Simplify right side
   636,186x = 1,922,892,515,856
5. Step 5: Solve for x
   x = 1,922,892,515,856/636,186
6. Step 6: Final answer
   x = 3,022,531.96