Finding the Third Proportional to 1,400,986 and 2,218,767

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400,986 : 2,218,767 = 2,218,767 : x
2. Step 2: Convert to fraction form
   1,400,986/2,218,767 = 2,218,767/x
3. Step 3: Cross multiply
   1,400,986x = 2,218,767 × 2,218,767
4. Step 4: Simplify right side
   1,400,986x = 4,922,927,000,289
5. Step 5: Solve for x
   x = 4,922,927,000,289/1,400,986
6. Step 6: Final answer
   x = 3,513,901.64