Finding the Third Proportional to 1,098,628 and 1,697,720

Step by Step Solution

1. Step 1: Write the proportion equation
   1,098,628 : 1,697,720 = 1,697,720 : x
2. Step 2: Convert to fraction form
   1,098,628/1,697,720 = 1,697,720/x
3. Step 3: Cross multiply
   1,098,628x = 1,697,720 × 1,697,720
4. Step 4: Simplify right side
   1,098,628x = 2,882,253,198,400
5. Step 5: Solve for x
   x = 2,882,253,198,400/1,098,628
6. Step 6: Final answer
   x = 2,623,502.40