Finding the Third Proportional to 151,696 and 331,040

Step by Step Solution

1. Step 1: Write the proportion equation
   151,696 : 331,040 = 331,040 : x
2. Step 2: Convert to fraction form
   151,696/331,040 = 331,040/x
3. Step 3: Cross multiply
   151,696x = 331,040 × 331,040
4. Step 4: Simplify right side
   151,696x = 109,587,481,600
5. Step 5: Solve for x
   x = 109,587,481,600/151,696
6. Step 6: Final answer
   x = 722,415.10