Finding the Third Proportional to 158,472.38 and 343,815

Step by Step Solution

1. Step 1: Write the proportion equation
   158,472.38 : 343,815 = 343,815 : x
2. Step 2: Convert to fraction form
   158,472.38/343,815 = 343,815/x
3. Step 3: Cross multiply
   158,472.38x = 343,815 × 343,815
4. Step 4: Simplify right side
   158,472.38x = 118,208,754,225
5. Step 5: Solve for x
   x = 118,208,754,225/158,472.38
6. Step 6: Final answer
   x = 745,926.56