Finding the Third Proportional to 3,670,218 and 7,871,787

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,218 : 7,871,787 = 7,871,787 : x
2. Step 2: Convert to fraction form
   3,670,218/7,871,787 = 7,871,787/x
3. Step 3: Cross multiply
   3,670,218x = 7,871,787 × 7,871,787
4. Step 4: Simplify right side
   3,670,218x = 61,965,030,573,369
5. Step 5: Solve for x
   x = 61,965,030,573,369/3,670,218
6. Step 6: Final answer
   x = 16,883,201.64