Finding the Third Proportional to 152,983 and 331,389

Step by Step Solution

1. Step 1: Write the proportion equation
   152,983 : 331,389 = 331,389 : x
2. Step 2: Convert to fraction form
   152,983/331,389 = 331,389/x
3. Step 3: Cross multiply
   152,983x = 331,389 × 331,389
4. Step 4: Simplify right side
   152,983x = 109,818,669,321
5. Step 5: Solve for x
   x = 109,818,669,321/152,983
6. Step 6: Final answer
   x = 717,848.84