Finding the Third Proportional to 871,398 and 1,914,624

Step by Step Solution

1. Step 1: Write the proportion equation
   871,398 : 1,914,624 = 1,914,624 : x
2. Step 2: Convert to fraction form
   871,398/1,914,624 = 1,914,624/x
3. Step 3: Cross multiply
   871,398x = 1,914,624 × 1,914,624
4. Step 4: Simplify right side
   871,398x = 3,665,785,061,376
5. Step 5: Solve for x
   x = 3,665,785,061,376/871,398
6. Step 6: Final answer
   x = 4,206,786.18