Finding the Third Proportional to 5,179,740 and 8,107,542

Step by Step Solution

1. Step 1: Write the proportion equation
   5,179,740 : 8,107,542 = 8,107,542 : x
2. Step 2: Convert to fraction form
   5,179,740/8,107,542 = 8,107,542/x
3. Step 3: Cross multiply
   5,179,740x = 8,107,542 × 8,107,542
4. Step 4: Simplify right side
   5,179,740x = 65,732,237,281,764
5. Step 5: Solve for x
   x = 65,732,237,281,764/5,179,740
6. Step 6: Final answer
   x = 12,690,258.06