Finding the Third Proportional to 161,086 and 345,500

Step by Step Solution

1. Step 1: Write the proportion equation
   161,086 : 345,500 = 345,500 : x
2. Step 2: Convert to fraction form
   161,086/345,500 = 345,500/x
3. Step 3: Cross multiply
   161,086x = 345,500 × 345,500
4. Step 4: Simplify right side
   161,086x = 119,370,250,000
5. Step 5: Solve for x
   x = 119,370,250,000/161,086
6. Step 6: Final answer
   x = 741,034.29