Finding the Third Proportional to 492,820 and 704,742

Step by Step Solution

1. Step 1: Write the proportion equation
   492,820 : 704,742 = 704,742 : x
2. Step 2: Convert to fraction form
   492,820/704,742 = 704,742/x
3. Step 3: Cross multiply
   492,820x = 704,742 × 704,742
4. Step 4: Simplify right side
   492,820x = 496,661,286,564
5. Step 5: Solve for x
   x = 496,661,286,564/492,820
6. Step 6: Final answer
   x = 1,007,794.50