Finding the Third Proportional to 3,388,818 and 7,328,280

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388,818 : 7,328,280 = 7,328,280 : x
2. Step 2: Convert to fraction form
   3,388,818/7,328,280 = 7,328,280/x
3. Step 3: Cross multiply
   3,388,818x = 7,328,280 × 7,328,280
4. Step 4: Simplify right side
   3,388,818x = 53,703,687,758,400
5. Step 5: Solve for x
   x = 53,703,687,758,400/3,388,818
6. Step 6: Final answer
   x = 15,847,321.33