Finding the Third Proportional to 70,288 and 150,620

Step by Step Solution

1. Step 1: Write the proportion equation
   70,288 : 150,620 = 150,620 : x
2. Step 2: Convert to fraction form
   70,288/150,620 = 150,620/x
3. Step 3: Cross multiply
   70,288x = 150,620 × 150,620
4. Step 4: Simplify right side
   70,288x = 22,686,384,400
5. Step 5: Solve for x
   x = 22,686,384,400/70,288
6. Step 6: Final answer
   x = 322,763.27