Finding the Third Proportional to 152,590.50 and 331,450.31

Step by Step Solution

1. Step 1: Write the proportion equation
   152,590.50 : 331,450.31 = 331,450.31 : x
2. Step 2: Convert to fraction form
   152,590.50/331,450.31 = 331,450.31/x
3. Step 3: Cross multiply
   152,590.50x = 331,450.31 × 331,450.31
4. Step 4: Simplify right side
   152,590.50x = 109,859,309,656.35
5. Step 5: Solve for x
   x = 109,859,309,656.35/152,590.50
6. Step 6: Final answer
   x = 719,961.66