Finding the Third Proportional to 1,219,608 and 1,811,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,608 : 1,811,718 = 1,811,718 : x
2. Step 2: Convert to fraction form
   1,219,608/1,811,718 = 1,811,718/x
3. Step 3: Cross multiply
   1,219,608x = 1,811,718 × 1,811,718
4. Step 4: Simplify right side
   1,219,608x = 3,282,322,111,524
5. Step 5: Solve for x
   x = 3,282,322,111,524/1,219,608
6. Step 6: Final answer
   x = 2,691,292.70