Finding the Third Proportional to 152,974.50 and 331,368

Step by Step Solution

1. Step 1: Write the proportion equation
   152,974.50 : 331,368 = 331,368 : x
2. Step 2: Convert to fraction form
   152,974.50/331,368 = 331,368/x
3. Step 3: Cross multiply
   152,974.50x = 331,368 × 331,368
4. Step 4: Simplify right side
   152,974.50x = 109,804,751,424
5. Step 5: Solve for x
   x = 109,804,751,424/152,974.50
6. Step 6: Final answer
   x = 717,797.75