Finding the Third Proportional to 1,418,544 and 3,078,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,544 : 3,078,216 = 3,078,216 : x
2. Step 2: Convert to fraction form
   1,418,544/3,078,216 = 3,078,216/x
3. Step 3: Cross multiply
   1,418,544x = 3,078,216 × 3,078,216
4. Step 4: Simplify right side
   1,418,544x = 9,475,413,742,656
5. Step 5: Solve for x
   x = 9,475,413,742,656/1,418,544
6. Step 6: Final answer
   x = 6,679,675.60