Finding the Third Proportional to 2,081,690 and 4,438,210

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081,690 : 4,438,210 = 4,438,210 : x
2. Step 2: Convert to fraction form
   2,081,690/4,438,210 = 4,438,210/x
3. Step 3: Cross multiply
   2,081,690x = 4,438,210 × 4,438,210
4. Step 4: Simplify right side
   2,081,690x = 19,697,708,004,100
5. Step 5: Solve for x
   x = 19,697,708,004,100/2,081,690
6. Step 6: Final answer
   x = 9,462,363.75