Finding the Third Proportional to 5,149,701 and 7,790,830

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,701 : 7,790,830 = 7,790,830 : x
2. Step 2: Convert to fraction form
   5,149,701/7,790,830 = 7,790,830/x
3. Step 3: Cross multiply
   5,149,701x = 7,790,830 × 7,790,830
4. Step 4: Simplify right side
   5,149,701x = 60,697,032,088,900
5. Step 5: Solve for x
   x = 60,697,032,088,900/5,149,701
6. Step 6: Final answer
   x = 11,786,515.78