Finding the Third Proportional to 871,175 and 1,868,461

Step by Step Solution

1. Step 1: Write the proportion equation
   871,175 : 1,868,461 = 1,868,461 : x
2. Step 2: Convert to fraction form
   871,175/1,868,461 = 1,868,461/x
3. Step 3: Cross multiply
   871,175x = 1,868,461 × 1,868,461
4. Step 4: Simplify right side
   871,175x = 3,491,146,508,521
5. Step 5: Solve for x
   x = 3,491,146,508,521/871,175
6. Step 6: Final answer
   x = 4,007,399.79