Finding the Third Proportional to 72,212 and 150,200

Step by Step Solution

1. Step 1: Write the proportion equation
   72,212 : 150,200 = 150,200 : x
2. Step 2: Convert to fraction form
   72,212/150,200 = 150,200/x
3. Step 3: Cross multiply
   72,212x = 150,200 × 150,200
4. Step 4: Simplify right side
   72,212x = 22,560,040,000
5. Step 5: Solve for x
   x = 22,560,040,000/72,212
6. Step 6: Final answer
   x = 312,414.00