Finding the Third Proportional to 1,857,811 and 2,871,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857,811 : 2,871,256 = 2,871,256 : x
2. Step 2: Convert to fraction form
   1,857,811/2,871,256 = 2,871,256/x
3. Step 3: Cross multiply
   1,857,811x = 2,871,256 × 2,871,256
4. Step 4: Simplify right side
   1,857,811x = 8,244,111,017,536
5. Step 5: Solve for x
   x = 8,244,111,017,536/1,857,811
6. Step 6: Final answer
   x = 4,437,540.21