Finding the Third Proportional to 687,768 and 1,494,120

Step by Step Solution

1. Step 1: Write the proportion equation
   687,768 : 1,494,120 = 1,494,120 : x
2. Step 2: Convert to fraction form
   687,768/1,494,120 = 1,494,120/x
3. Step 3: Cross multiply
   687,768x = 1,494,120 × 1,494,120
4. Step 4: Simplify right side
   687,768x = 2,232,394,574,400
5. Step 5: Solve for x
   x = 2,232,394,574,400/687,768
6. Step 6: Final answer
   x = 3,245,854.09