Finding the Third Proportional to 5,589,512 and 8,412,256

Step by Step Solution

1. Step 1: Write the proportion equation
   5,589,512 : 8,412,256 = 8,412,256 : x
2. Step 2: Convert to fraction form
   5,589,512/8,412,256 = 8,412,256/x
3. Step 3: Cross multiply
   5,589,512x = 8,412,256 × 8,412,256
4. Step 4: Simplify right side
   5,589,512x = 70,766,051,009,536
5. Step 5: Solve for x
   x = 70,766,051,009,536/5,589,512
6. Step 6: Final answer
   x = 12,660,506.14