Finding the Third Proportional to 5,149,756 and 7,790,902

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,756 : 7,790,902 = 7,790,902 : x
2. Step 2: Convert to fraction form
   5,149,756/7,790,902 = 7,790,902/x
3. Step 3: Cross multiply
   5,149,756x = 7,790,902 × 7,790,902
4. Step 4: Simplify right side
   5,149,756x = 60,698,153,973,604
5. Step 5: Solve for x
   x = 60,698,153,973,604/5,149,756
6. Step 6: Final answer
   x = 11,786,607.75