Finding the Third Proportional to 5,149,737 and 7,790,877

Step by Step Solution

1. Step 1: Write the proportion equation
   5,149,737 : 7,790,877 = 7,790,877 : x
2. Step 2: Convert to fraction form
   5,149,737/7,790,877 = 7,790,877/x
3. Step 3: Cross multiply
   5,149,737x = 7,790,877 × 7,790,877
4. Step 4: Simplify right side
   5,149,737x = 60,697,764,429,129
5. Step 5: Solve for x
   x = 60,697,764,429,129/5,149,737
6. Step 6: Final answer
   x = 11,786,575.59