Finding the Third Proportional to 162,997.50 and 343,695

Step by Step Solution

1. Step 1: Write the proportion equation
   162,997.50 : 343,695 = 343,695 : x
2. Step 2: Convert to fraction form
   162,997.50/343,695 = 343,695/x
3. Step 3: Cross multiply
   162,997.50x = 343,695 × 343,695
4. Step 4: Simplify right side
   162,997.50x = 118,126,253,025
5. Step 5: Solve for x
   x = 118,126,253,025/162,997.50
6. Step 6: Final answer
   x = 724,712.05