Finding the Third Proportional to 690,374 and 1,428,682

Step by Step Solution

1. Step 1: Write the proportion equation
   690,374 : 1,428,682 = 1,428,682 : x
2. Step 2: Convert to fraction form
   690,374/1,428,682 = 1,428,682/x
3. Step 3: Cross multiply
   690,374x = 1,428,682 × 1,428,682
4. Step 4: Simplify right side
   690,374x = 2,041,132,257,124
5. Step 5: Solve for x
   x = 2,041,132,257,124/690,374
6. Step 6: Final answer
   x = 2,956,560.15