Finding the Third Proportional to 639,044 and 1,367,836

Step by Step Solution

1. Step 1: Write the proportion equation
   639,044 : 1,367,836 = 1,367,836 : x
2. Step 2: Convert to fraction form
   639,044/1,367,836 = 1,367,836/x
3. Step 3: Cross multiply
   639,044x = 1,367,836 × 1,367,836
4. Step 4: Simplify right side
   639,044x = 1,870,975,322,896
5. Step 5: Solve for x
   x = 1,870,975,322,896/639,044
6. Step 6: Final answer
   x = 2,927,772.30