Finding the Third Proportional to 5,383,585 and 8,274,942

Step by Step Solution

1. Step 1: Write the proportion equation
   5,383,585 : 8,274,942 = 8,274,942 : x
2. Step 2: Convert to fraction form
   5,383,585/8,274,942 = 8,274,942/x
3. Step 3: Cross multiply
   5,383,585x = 8,274,942 × 8,274,942
4. Step 4: Simplify right side
   5,383,585x = 68,474,665,103,364
5. Step 5: Solve for x
   x = 68,474,665,103,364/5,383,585
6. Step 6: Final answer
   x = 12,719,157.42