Finding the Third Proportional to 70,216.50 and 150,315

Step by Step Solution

1. Step 1: Write the proportion equation
   70,216.50 : 150,315 = 150,315 : x
2. Step 2: Convert to fraction form
   70,216.50/150,315 = 150,315/x
3. Step 3: Cross multiply
   70,216.50x = 150,315 × 150,315
4. Step 4: Simplify right side
   70,216.50x = 22,594,599,225
5. Step 5: Solve for x
   x = 22,594,599,225/70,216.50
6. Step 6: Final answer
   x = 321,784.75