Finding the Third Proportional to 3,660,268 and 5,280,386

Step by Step Solution

1. Step 1: Write the proportion equation
   3,660,268 : 5,280,386 = 5,280,386 : x
2. Step 2: Convert to fraction form
   3,660,268/5,280,386 = 5,280,386/x
3. Step 3: Cross multiply
   3,660,268x = 5,280,386 × 5,280,386
4. Step 4: Simplify right side
   3,660,268x = 27,882,476,308,996
5. Step 5: Solve for x
   x = 27,882,476,308,996/3,660,268
6. Step 6: Final answer
   x = 7,617,605.13