Finding the Third Proportional to 5,280,391 and 8,393,019

Step by Step Solution

1. Step 1: Write the proportion equation
   5,280,391 : 8,393,019 = 8,393,019 : x
2. Step 2: Convert to fraction form
   5,280,391/8,393,019 = 8,393,019/x
3. Step 3: Cross multiply
   5,280,391x = 8,393,019 × 8,393,019
4. Step 4: Simplify right side
   5,280,391x = 70,442,767,934,361
5. Step 5: Solve for x
   x = 70,442,767,934,361/5,280,391
6. Step 6: Final answer
   x = 13,340,445.42