Finding the Third Proportional to 1,226,831 and 2,681,109

Step by Step Solution

1. Step 1: Write the proportion equation
   1,226,831 : 2,681,109 = 2,681,109 : x
2. Step 2: Convert to fraction form
   1,226,831/2,681,109 = 2,681,109/x
3. Step 3: Cross multiply
   1,226,831x = 2,681,109 × 2,681,109
4. Step 4: Simplify right side
   1,226,831x = 7,188,345,469,881
5. Step 5: Solve for x
   x = 7,188,345,469,881/1,226,831
6. Step 6: Final answer
   x = 5,859,279.29