Finding the Third Proportional to 639,010 and 1,367,786

Step by Step Solution

1. Step 1: Write the proportion equation
   639,010 : 1,367,786 = 1,367,786 : x
2. Step 2: Convert to fraction form
   639,010/1,367,786 = 1,367,786/x
3. Step 3: Cross multiply
   639,010x = 1,367,786 × 1,367,786
4. Step 4: Simplify right side
   639,010x = 1,870,838,541,796
5. Step 5: Solve for x
   x = 1,870,838,541,796/639,010
6. Step 6: Final answer
   x = 2,927,714.03