Finding the Third Proportional to 1,216,994 and 1,891,867

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,994 : 1,891,867 = 1,891,867 : x
2. Step 2: Convert to fraction form
   1,216,994/1,891,867 = 1,891,867/x
3. Step 3: Cross multiply
   1,216,994x = 1,891,867 × 1,891,867
4. Step 4: Simplify right side
   1,216,994x = 3,579,160,745,689
5. Step 5: Solve for x
   x = 3,579,160,745,689/1,216,994
6. Step 6: Final answer
   x = 2,940,984.71