Finding the Third Proportional to 639,004 and 1,367,772

Step by Step Solution

1. Step 1: Write the proportion equation
   639,004 : 1,367,772 = 1,367,772 : x
2. Step 2: Convert to fraction form
   639,004/1,367,772 = 1,367,772/x
3. Step 3: Cross multiply
   639,004x = 1,367,772 × 1,367,772
4. Step 4: Simplify right side
   639,004x = 1,870,800,243,984
5. Step 5: Solve for x
   x = 1,870,800,243,984/639,004
6. Step 6: Final answer
   x = 2,927,681.59