Finding the Third Proportional to 628,975 and 1,381,507

Step by Step Solution

1. Step 1: Write the proportion equation
   628,975 : 1,381,507 = 1,381,507 : x
2. Step 2: Convert to fraction form
   628,975/1,381,507 = 1,381,507/x
3. Step 3: Cross multiply
   628,975x = 1,381,507 × 1,381,507
4. Step 4: Simplify right side
   628,975x = 1,908,561,591,049
5. Step 5: Solve for x
   x = 1,908,561,591,049/628,975
6. Step 6: Final answer
   x = 3,034,399.76