Finding the Third Proportional to 636,484 and 1,386,584

Step by Step Solution

1. Step 1: Write the proportion equation
   636,484 : 1,386,584 = 1,386,584 : x
2. Step 2: Convert to fraction form
   636,484/1,386,584 = 1,386,584/x
3. Step 3: Cross multiply
   636,484x = 1,386,584 × 1,386,584
4. Step 4: Simplify right side
   636,484x = 1,922,615,189,056
5. Step 5: Solve for x
   x = 1,922,615,189,056/636,484
6. Step 6: Final answer
   x = 3,020,681.10