Finding the Third Proportional to 151,142 and 329,915

Step by Step Solution

1. Step 1: Write the proportion equation
   151,142 : 329,915 = 329,915 : x
2. Step 2: Convert to fraction form
   151,142/329,915 = 329,915/x
3. Step 3: Cross multiply
   151,142x = 329,915 × 329,915
4. Step 4: Simplify right side
   151,142x = 108,843,907,225
5. Step 5: Solve for x
   x = 108,843,907,225/151,142
6. Step 6: Final answer
   x = 720,143.36