Finding the Third Proportional to 871,623 and 1,897,641

Step by Step Solution

1. Step 1: Write the proportion equation
   871,623 : 1,897,641 = 1,897,641 : x
2. Step 2: Convert to fraction form
   871,623/1,897,641 = 1,897,641/x
3. Step 3: Cross multiply
   871,623x = 1,897,641 × 1,897,641
4. Step 4: Simplify right side
   871,623x = 3,601,041,364,881
5. Step 5: Solve for x
   x = 3,601,041,364,881/871,623
6. Step 6: Final answer
   x = 4,131,420.77