Finding the Third Proportional to 152,788 and 328,976

Step by Step Solution

1. Step 1: Write the proportion equation
   152,788 : 328,976 = 328,976 : x
2. Step 2: Convert to fraction form
   152,788/328,976 = 328,976/x
3. Step 3: Cross multiply
   152,788x = 328,976 × 328,976
4. Step 4: Simplify right side
   152,788x = 108,225,208,576
5. Step 5: Solve for x
   x = 108,225,208,576/152,788
6. Step 6: Final answer
   x = 708,335.79