Finding the Third Proportional to 1,304,624 and 1,990,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,304,624 : 1,990,680 = 1,990,680 : x
2. Step 2: Convert to fraction form
   1,304,624/1,990,680 = 1,990,680/x
3. Step 3: Cross multiply
   1,304,624x = 1,990,680 × 1,990,680
4. Step 4: Simplify right side
   1,304,624x = 3,962,806,862,400
5. Step 5: Solve for x
   x = 3,962,806,862,400/1,304,624
6. Step 6: Final answer
   x = 3,037,508.79