Finding the Third Proportional to 611,911.50 and 1,325,499

Step by Step Solution

1. Step 1: Write the proportion equation
   611,911.50 : 1,325,499 = 1,325,499 : x
2. Step 2: Convert to fraction form
   611,911.50/1,325,499 = 1,325,499/x
3. Step 3: Cross multiply
   611,911.50x = 1,325,499 × 1,325,499
4. Step 4: Simplify right side
   611,911.50x = 1,756,947,599,001
5. Step 5: Solve for x
   x = 1,756,947,599,001/611,911.50
6. Step 6: Final answer
   x = 2,871,244.61