Finding the Third Proportional to 611,912 and 1,325,521

Step by Step Solution

1. Step 1: Write the proportion equation
   611,912 : 1,325,521 = 1,325,521 : x
2. Step 2: Convert to fraction form
   611,912/1,325,521 = 1,325,521/x
3. Step 3: Cross multiply
   611,912x = 1,325,521 × 1,325,521
4. Step 4: Simplify right side
   611,912x = 1,757,005,921,441
5. Step 5: Solve for x
   x = 1,757,005,921,441/611,912
6. Step 6: Final answer
   x = 2,871,337.58