Finding the Third Proportional to 328,424 and 707,494

Step by Step Solution

1. Step 1: Write the proportion equation
   328,424 : 707,494 = 707,494 : x
2. Step 2: Convert to fraction form
   328,424/707,494 = 707,494/x
3. Step 3: Cross multiply
   328,424x = 707,494 × 707,494
4. Step 4: Simplify right side
   328,424x = 500,547,760,036
5. Step 5: Solve for x
   x = 500,547,760,036/328,424
6. Step 6: Final answer
   x = 1,524,090.08