Finding the Third Proportional to 4,184,692 and 8,871,556

Step by Step Solution

1. Step 1: Write the proportion equation
   4,184,692 : 8,871,556 = 8,871,556 : x
2. Step 2: Convert to fraction form
   4,184,692/8,871,556 = 8,871,556/x
3. Step 3: Cross multiply
   4,184,692x = 8,871,556 × 8,871,556
4. Step 4: Simplify right side
   4,184,692x = 78,704,505,861,136
5. Step 5: Solve for x
   x = 78,704,505,861,136/4,184,692
6. Step 6: Final answer
   x = 18,807,717.72