Finding the Third Proportional to 155,328 and 331,008

Step by Step Solution

1. Step 1: Write the proportion equation
   155,328 : 331,008 = 331,008 : x
2. Step 2: Convert to fraction form
   155,328/331,008 = 331,008/x
3. Step 3: Cross multiply
   155,328x = 331,008 × 331,008
4. Step 4: Simplify right side
   155,328x = 109,566,296,064
5. Step 5: Solve for x
   x = 109,566,296,064/155,328
6. Step 6: Final answer
   x = 705,386.64