Finding the Third Proportional to 171,414 and 351,180

Step by Step Solution

1. Step 1: Write the proportion equation
   171,414 : 351,180 = 351,180 : x
2. Step 2: Convert to fraction form
   171,414/351,180 = 351,180/x
3. Step 3: Cross multiply
   171,414x = 351,180 × 351,180
4. Step 4: Simplify right side
   171,414x = 123,327,392,400
5. Step 5: Solve for x
   x = 123,327,392,400/171,414
6. Step 6: Final answer
   x = 719,470.94