Finding the Third Proportional to 3,280,578 and 4,416,288

Step by Step Solution

1. Step 1: Write the proportion equation
   3,280,578 : 4,416,288 = 4,416,288 : x
2. Step 2: Convert to fraction form
   3,280,578/4,416,288 = 4,416,288/x
3. Step 3: Cross multiply
   3,280,578x = 4,416,288 × 4,416,288
4. Step 4: Simplify right side
   3,280,578x = 19,503,599,698,944
5. Step 5: Solve for x
   x = 19,503,599,698,944/3,280,578
6. Step 6: Final answer
   x = 5,945,171.77