Finding the Third Proportional to 5,494,934 and 8,405,589

Step by Step Solution

1. Step 1: Write the proportion equation
   5,494,934 : 8,405,589 = 8,405,589 : x
2. Step 2: Convert to fraction form
   5,494,934/8,405,589 = 8,405,589/x
3. Step 3: Cross multiply
   5,494,934x = 8,405,589 × 8,405,589
4. Step 4: Simplify right side
   5,494,934x = 70,653,926,436,921
5. Step 5: Solve for x
   x = 70,653,926,436,921/5,494,934
6. Step 6: Final answer
   x = 12,858,011.84