Finding the Third Proportional to 859,457 and 1,871,836

Step by Step Solution

1. Step 1: Write the proportion equation
   859,457 : 1,871,836 = 1,871,836 : x
2. Step 2: Convert to fraction form
   859,457/1,871,836 = 1,871,836/x
3. Step 3: Cross multiply
   859,457x = 1,871,836 × 1,871,836
4. Step 4: Simplify right side
   859,457x = 3,503,770,010,896
5. Step 5: Solve for x
   x = 3,503,770,010,896/859,457
6. Step 6: Final answer
   x = 4,076,725.20