Finding the Third Proportional to 911,775 and 1,978,098

Step by Step Solution

1. Step 1: Write the proportion equation
   911,775 : 1,978,098 = 1,978,098 : x
2. Step 2: Convert to fraction form
   911,775/1,978,098 = 1,978,098/x
3. Step 3: Cross multiply
   911,775x = 1,978,098 × 1,978,098
4. Step 4: Simplify right side
   911,775x = 3,912,871,697,604
5. Step 5: Solve for x
   x = 3,912,871,697,604/911,775
6. Step 6: Final answer
   x = 4,291,488.25