Finding the Third Proportional to 5,149,734 and 7,790,868

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,734 : 7,790,868 = 7,790,868 : x
2. Step 2: Convert to fraction form
   5,149,734/7,790,868 = 7,790,868/x
3. Step 3: Cross multiply
   5,149,734x = 7,790,868 × 7,790,868
4. Step 4: Simplify right side
   5,149,734x = 60,697,624,193,424
5. Step 5: Solve for x
   x = 60,697,624,193,424/5,149,734
6. Step 6: Final answer
   x = 11,786,555.23