Finding the Third Proportional to 1,512,980 and 3,226,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,512,980 : 3,226,216 = 3,226,216 : x
2. Step 2: Convert to fraction form
   1,512,980/3,226,216 = 3,226,216/x
3. Step 3: Cross multiply
   1,512,980x = 3,226,216 × 3,226,216
4. Step 4: Simplify right side
   1,512,980x = 10,408,469,678,656
5. Step 5: Solve for x
   x = 10,408,469,678,656/1,512,980
6. Step 6: Final answer
   x = 6,879,449.62