Finding the Third Proportional to 422,714 and 997,290

Step by Step Solution

1. Step 1: Write the proportion equation
   422,714 : 997,290 = 997,290 : x
2. Step 2: Convert to fraction form
   422,714/997,290 = 997,290/x
3. Step 3: Cross multiply
   422,714x = 997,290 × 997,290
4. Step 4: Simplify right side
   422,714x = 994,587,344,100
5. Step 5: Solve for x
   x = 994,587,344,100/422,714
6. Step 6: Final answer
   x = 2,352,861.14