Finding the Third Proportional to 5,589,558 and 8,412,322

Step by Step Solution

1. Step 1: Write the proportion equation
   5,589,558 : 8,412,322 = 8,412,322 : x
2. Step 2: Convert to fraction form
   5,589,558/8,412,322 = 8,412,322/x
3. Step 3: Cross multiply
   5,589,558x = 8,412,322 × 8,412,322
4. Step 4: Simplify right side
   5,589,558x = 70,767,161,431,684
5. Step 5: Solve for x
   x = 70,767,161,431,684/5,589,558
6. Step 6: Final answer
   x = 12,660,600.61