Finding the Third Proportional to 3,280,300 and 7,288,663

Step by Step Solution

1. Step 1: Write the proportion equation
   3,280,300 : 7,288,663 = 7,288,663 : x
2. Step 2: Convert to fraction form
   3,280,300/7,288,663 = 7,288,663/x
3. Step 3: Cross multiply
   3,280,300x = 7,288,663 × 7,288,663
4. Step 4: Simplify right side
   3,280,300x = 53,124,608,327,569
5. Step 5: Solve for x
   x = 53,124,608,327,569/3,280,300
6. Step 6: Final answer
   x = 16,195,045.67