Finding the Third Proportional to 609,409 and 1,320,510

Step by Step Solution

1. Step 1: Write the proportion equation
   609,409 : 1,320,510 = 1,320,510 : x
2. Step 2: Convert to fraction form
   609,409/1,320,510 = 1,320,510/x
3. Step 3: Cross multiply
   609,409x = 1,320,510 × 1,320,510
4. Step 4: Simplify right side
   609,409x = 1,743,746,660,100
5. Step 5: Solve for x
   x = 1,743,746,660,100/609,409
6. Step 6: Final answer
   x = 2,861,373.33