Finding the Third Proportional to 442,820 and 704,960

Step by Step Solution

1. Step 1: Write the proportion equation
   442,820 : 704,960 = 704,960 : x
2. Step 2: Convert to fraction form
   442,820/704,960 = 704,960/x
3. Step 3: Cross multiply
   442,820x = 704,960 × 704,960
4. Step 4: Simplify right side
   442,820x = 496,968,601,600
5. Step 5: Solve for x
   x = 496,968,601,600/442,820
6. Step 6: Final answer
   x = 1,122,281.29