Finding the Third Proportional to 4,991,471 and 7,667,510

Step by Step Solution

1. Step 1: Write the proportion equation
   4,991,471 : 7,667,510 = 7,667,510 : x
2. Step 2: Convert to fraction form
   4,991,471/7,667,510 = 7,667,510/x
3. Step 3: Cross multiply
   4,991,471x = 7,667,510 × 7,667,510
4. Step 4: Simplify right side
   4,991,471x = 58,790,709,600,100
5. Step 5: Solve for x
   x = 58,790,709,600,100/4,991,471
6. Step 6: Final answer
   x = 11,778,233.23