Finding the Third Proportional to 871,448 and 1,876,380

Step by Step Solution

1. Step 1: Write the proportion equation
   871,448 : 1,876,380 = 1,876,380 : x
2. Step 2: Convert to fraction form
   871,448/1,876,380 = 1,876,380/x
3. Step 3: Cross multiply
   871,448x = 1,876,380 × 1,876,380
4. Step 4: Simplify right side
   871,448x = 3,520,801,904,400
5. Step 5: Solve for x
   x = 3,520,801,904,400/871,448
6. Step 6: Final answer
   x = 4,040,174.40