Finding the Third Proportional to 151,144 and 328,784

Step by Step Solution

1. Step 1: Write the proportion equation
   151,144 : 328,784 = 328,784 : x
2. Step 2: Convert to fraction form
   151,144/328,784 = 328,784/x
3. Step 3: Cross multiply
   151,144x = 328,784 × 328,784
4. Step 4: Simplify right side
   151,144x = 108,098,918,656
5. Step 5: Solve for x
   x = 108,098,918,656/151,144
6. Step 6: Final answer
   x = 715,204.83