Finding the Third Proportional to 871,116 and 1,311,742

Step by Step Solution

1. Step 1: Write the proportion equation
   871,116 : 1,311,742 = 1,311,742 : x
2. Step 2: Convert to fraction form
   871,116/1,311,742 = 1,311,742/x
3. Step 3: Cross multiply
   871,116x = 1,311,742 × 1,311,742
4. Step 4: Simplify right side
   871,116x = 1,720,667,074,564
5. Step 5: Solve for x
   x = 1,720,667,074,564/871,116
6. Step 6: Final answer
   x = 1,975,244.48