Finding the Third Proportional to 422,658 and 996,738.75

Step by Step Solution

1. Step 1: Write the proportion equation
   422,658 : 996,738.75 = 996,738.75 : x
2. Step 2: Convert to fraction form
   422,658/996,738.75 = 996,738.75/x
3. Step 3: Cross multiply
   422,658x = 996,738.75 × 996,738.75
4. Step 4: Simplify right side
   422,658x = 993,488,135,751.56
5. Step 5: Solve for x
   x = 993,488,135,751.56/422,658
6. Step 6: Final answer
   x = 2,350,572.18