Finding the Third Proportional to 871,638 and 1,897,668

Step by Step Solution

1. Step 1: Write the proportion equation
   871,638 : 1,897,668 = 1,897,668 : x
2. Step 2: Convert to fraction form
   871,638/1,897,668 = 1,897,668/x
3. Step 3: Cross multiply
   871,638x = 1,897,668 × 1,897,668
4. Step 4: Simplify right side
   871,638x = 3,601,143,838,224
5. Step 5: Solve for x
   x = 3,601,143,838,224/871,638
6. Step 6: Final answer
   x = 4,131,467.24