Finding the Third Proportional to 628,716 and 997,182.75

Step by Step Solution

1. Step 1: Write the proportion equation
   628,716 : 997,182.75 = 997,182.75 : x
2. Step 2: Convert to fraction form
   628,716/997,182.75 = 997,182.75/x
3. Step 3: Cross multiply
   628,716x = 997,182.75 × 997,182.75
4. Step 4: Simplify right side
   628,716x = 994,373,436,897.56
5. Step 5: Solve for x
   x = 994,373,436,897.56/628,716
6. Step 6: Final answer
   x = 1,581,593.97