Finding the Third Proportional to 3,670,211 and 7,871,772

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,211 : 7,871,772 = 7,871,772 : x
2. Step 2: Convert to fraction form
   3,670,211/7,871,772 = 7,871,772/x
3. Step 3: Cross multiply
   3,670,211x = 7,871,772 × 7,871,772
4. Step 4: Simplify right side
   3,670,211x = 61,964,794,419,984
5. Step 5: Solve for x
   x = 61,964,794,419,984/3,670,211
6. Step 6: Final answer
   x = 16,883,169.50