Finding the Third Proportional to 871,646 and 1,897,686

Step by Step Solution

1. Step 1: Write the proportion equation
   871,646 : 1,897,686 = 1,897,686 : x
2. Step 2: Convert to fraction form
   871,646/1,897,686 = 1,897,686/x
3. Step 3: Cross multiply
   871,646x = 1,897,686 × 1,897,686
4. Step 4: Simplify right side
   871,646x = 3,601,212,154,596
5. Step 5: Solve for x
   x = 3,601,212,154,596/871,646
6. Step 6: Final answer
   x = 4,131,507.69