Finding the Third Proportional to 1,821,291 and 2,672,886

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821,291 : 2,672,886 = 2,672,886 : x
2. Step 2: Convert to fraction form
   1,821,291/2,672,886 = 2,672,886/x
3. Step 3: Cross multiply
   1,821,291x = 2,672,886 × 2,672,886
4. Step 4: Simplify right side
   1,821,291x = 7,144,319,568,996
5. Step 5: Solve for x
   x = 7,144,319,568,996/1,821,291
6. Step 6: Final answer
   x = 3,922,667.80