Finding the Third Proportional to 70,219 and 150,280

Step by Step Solution

1. Step 1: Write the proportion equation
   70,219 : 150,280 = 150,280 : x
2. Step 2: Convert to fraction form
   70,219/150,280 = 150,280/x
3. Step 3: Cross multiply
   70,219x = 150,280 × 150,280
4. Step 4: Simplify right side
   70,219x = 22,584,078,400
5. Step 5: Solve for x
   x = 22,584,078,400/70,219
6. Step 6: Final answer
   x = 321,623.47