Finding the Third Proportional to 161,956.50 and 334,287

Step by Step Solution

1. Step 1: Write the proportion equation
   161,956.50 : 334,287 = 334,287 : x
2. Step 2: Convert to fraction form
   161,956.50/334,287 = 334,287/x
3. Step 3: Cross multiply
   161,956.50x = 334,287 × 334,287
4. Step 4: Simplify right side
   161,956.50x = 111,747,798,369
5. Step 5: Solve for x
   x = 111,747,798,369/161,956.50
6. Step 6: Final answer
   x = 689,986.50