Finding the Third Proportional to 611,911 and 1,325,518

Step by Step Solution

1. Step 1: Write the proportion equation
   611,911 : 1,325,518 = 1,325,518 : x
2. Step 2: Convert to fraction form
   611,911/1,325,518 = 1,325,518/x
3. Step 3: Cross multiply
   611,911x = 1,325,518 × 1,325,518
4. Step 4: Simplify right side
   611,911x = 1,756,997,968,324
5. Step 5: Solve for x
   x = 1,756,997,968,324/611,911
6. Step 6: Final answer
   x = 2,871,329.28