Finding the Third Proportional to 152,136 and 328,896

Step by Step Solution

1. Step 1: Write the proportion equation
   152,136 : 328,896 = 328,896 : x
2. Step 2: Convert to fraction form
   152,136/328,896 = 328,896/x
3. Step 3: Cross multiply
   152,136x = 328,896 × 328,896
4. Step 4: Simplify right side
   152,136x = 108,172,578,816
5. Step 5: Solve for x
   x = 108,172,578,816/152,136
6. Step 6: Final answer
   x = 711,025.52