Finding the Third Proportional to 323,190 and 434,757.38

Step by Step Solution

1. Step 1: Write the proportion equation
   323,190 : 434,757.38 = 434,757.38 : x
2. Step 2: Convert to fraction form
   323,190/434,757.38 = 434,757.38/x
3. Step 3: Cross multiply
   323,190x = 434,757.38 × 434,757.38
4. Step 4: Simplify right side
   323,190x = 189,013,975,116.89
5. Step 5: Solve for x
   x = 189,013,975,116.89/323,190
6. Step 6: Final answer
   x = 584,838.56