Finding the Third Proportional to 152,980 and 331,383

Step by Step Solution

1. Step 1: Write the proportion equation
   152,980 : 331,383 = 331,383 : x
2. Step 2: Convert to fraction form
   152,980/331,383 = 331,383/x
3. Step 3: Cross multiply
   152,980x = 331,383 × 331,383
4. Step 4: Simplify right side
   152,980x = 109,814,692,689
5. Step 5: Solve for x
   x = 109,814,692,689/152,980
6. Step 6: Final answer
   x = 717,836.92