Finding the Third Proportional to 1,644,878 and 3,667,969

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644,878 : 3,667,969 = 3,667,969 : x
2. Step 2: Convert to fraction form
   1,644,878/3,667,969 = 3,667,969/x
3. Step 3: Cross multiply
   1,644,878x = 3,667,969 × 3,667,969
4. Step 4: Simplify right side
   1,644,878x = 13,453,996,584,961
5. Step 5: Solve for x
   x = 13,453,996,584,961/1,644,878
6. Step 6: Final answer
   x = 8,179,327.94