Finding the Third Proportional to 5,262,019 and 7,871,569

Step by Step Solution

1. Step 1: Write the proportion equation
   5,262,019 : 7,871,569 = 7,871,569 : x
2. Step 2: Convert to fraction form
   5,262,019/7,871,569 = 7,871,569/x
3. Step 3: Cross multiply
   5,262,019x = 7,871,569 × 7,871,569
4. Step 4: Simplify right side
   5,262,019x = 61,961,598,521,761
5. Step 5: Solve for x
   x = 61,961,598,521,761/5,262,019
6. Step 6: Final answer
   x = 11,775,251.77