Finding the Third Proportional to 871,182 and 1,868,478

Step by Step Solution

1. Step 1: Write the proportion equation
   871,182 : 1,868,478 = 1,868,478 : x
2. Step 2: Convert to fraction form
   871,182/1,868,478 = 1,868,478/x
3. Step 3: Cross multiply
   871,182x = 1,868,478 × 1,868,478
4. Step 4: Simplify right side
   871,182x = 3,491,210,036,484
5. Step 5: Solve for x
   x = 3,491,210,036,484/871,182
6. Step 6: Final answer
   x = 4,007,440.51