Finding the Third Proportional to 3,318,768 and 7,280,352

Step by Step Solution

1. Step 1: Write the proportion equation
   3,318,768 : 7,280,352 = 7,280,352 : x
2. Step 2: Convert to fraction form
   3,318,768/7,280,352 = 7,280,352/x
3. Step 3: Cross multiply
   3,318,768x = 7,280,352 × 7,280,352
4. Step 4: Simplify right side
   3,318,768x = 53,003,525,243,904
5. Step 5: Solve for x
   x = 53,003,525,243,904/3,318,768
6. Step 6: Final answer
   x = 15,970,843.77