Finding the Third Proportional to 641,010 and 1,367,816

Step by Step Solution

1. Step 1: Write the proportion equation
   641,010 : 1,367,816 = 1,367,816 : x
2. Step 2: Convert to fraction form
   641,010/1,367,816 = 1,367,816/x
3. Step 3: Cross multiply
   641,010x = 1,367,816 × 1,367,816
4. Step 4: Simplify right side
   641,010x = 1,870,920,609,856
5. Step 5: Solve for x
   x = 1,870,920,609,856/641,010
6. Step 6: Final answer
   x = 2,918,707.37