Finding the Third Proportional to 329,638 and 705,932

Step by Step Solution

1. Step 1: Write the proportion equation
   329,638 : 705,932 = 705,932 : x
2. Step 2: Convert to fraction form
   329,638/705,932 = 705,932/x
3. Step 3: Cross multiply
   329,638x = 705,932 × 705,932
4. Step 4: Simplify right side
   329,638x = 498,339,988,624
5. Step 5: Solve for x
   x = 498,339,988,624/329,638
6. Step 6: Final answer
   x = 1,511,779.55