Finding the Third Proportional to 5,328,240 and 8,040,312

Step by Step Solution

1. Step 1: Write the proportion equation
   5,328,240 : 8,040,312 = 8,040,312 : x
2. Step 2: Convert to fraction form
   5,328,240/8,040,312 = 8,040,312/x
3. Step 3: Cross multiply
   5,328,240x = 8,040,312 × 8,040,312
4. Step 4: Simplify right side
   5,328,240x = 64,646,617,057,344
5. Step 5: Solve for x
   x = 64,646,617,057,344/5,328,240
6. Step 6: Final answer
   x = 12,132,827.55