Finding the Third Proportional to 152,724 and 328,048

Step by Step Solution

1. Step 1: Write the proportion equation
   152,724 : 328,048 = 328,048 : x
2. Step 2: Convert to fraction form
   152,724/328,048 = 328,048/x
3. Step 3: Cross multiply
   152,724x = 328,048 × 328,048
4. Step 4: Simplify right side
   152,724x = 107,615,490,304
5. Step 5: Solve for x
   x = 107,615,490,304/152,724
6. Step 6: Final answer
   x = 704,640.33