Finding the Third Proportional to 70,217.50 and 150,317

Step by Step Solution

1. Step 1: Write the proportion equation
   70,217.50 : 150,317 = 150,317 : x
2. Step 2: Convert to fraction form
   70,217.50/150,317 = 150,317/x
3. Step 3: Cross multiply
   70,217.50x = 150,317 × 150,317
4. Step 4: Simplify right side
   70,217.50x = 22,595,200,489
5. Step 5: Solve for x
   x = 22,595,200,489/70,217.50
6. Step 6: Final answer
   x = 321,788.73