Finding the Third Proportional to 859,416 and 1,871,760

Step by Step Solution

1. Step 1: Write the proportion equation
   859,416 : 1,871,760 = 1,871,760 : x
2. Step 2: Convert to fraction form
   859,416/1,871,760 = 1,871,760/x
3. Step 3: Cross multiply
   859,416x = 1,871,760 × 1,871,760
4. Step 4: Simplify right side
   859,416x = 3,503,485,497,600
5. Step 5: Solve for x
   x = 3,503,485,497,600/859,416
6. Step 6: Final answer
   x = 4,076,588.63