Finding the Third Proportional to 140,974 and 317,435

Step by Step Solution

1. Step 1: Write the proportion equation
   140,974 : 317,435 = 317,435 : x
2. Step 2: Convert to fraction form
   140,974/317,435 = 317,435/x
3. Step 3: Cross multiply
   140,974x = 317,435 × 317,435
4. Step 4: Simplify right side
   140,974x = 100,764,979,225
5. Step 5: Solve for x
   x = 100,764,979,225/140,974
6. Step 6: Final answer
   x = 714,777.05