Finding the Third Proportional to 5,280,389 and 8,393,016

Step by Step Solution

1. Step 1: Write the proportion equation
   5,280,389 : 8,393,016 = 8,393,016 : x
2. Step 2: Convert to fraction form
   5,280,389/8,393,016 = 8,393,016/x
3. Step 3: Cross multiply
   5,280,389x = 8,393,016 × 8,393,016
4. Step 4: Simplify right side
   5,280,389x = 70,442,717,576,256
5. Step 5: Solve for x
   x = 70,442,717,576,256/5,280,389
6. Step 6: Final answer
   x = 13,340,440.94