Finding the Third Proportional to 639,006 and 1,367,777

Step by Step Solution

1. Step 1: Write the proportion equation
   639,006 : 1,367,777 = 1,367,777 : x
2. Step 2: Convert to fraction form
   639,006/1,367,777 = 1,367,777/x
3. Step 3: Cross multiply
   639,006x = 1,367,777 × 1,367,777
4. Step 4: Simplify right side
   639,006x = 1,870,813,921,729
5. Step 5: Solve for x
   x = 1,870,813,921,729/639,006
6. Step 6: Final answer
   x = 2,927,693.83