Finding the Third Proportional to 70,189 and 150,209

Step by Step Solution

1. Step 1: Write the proportion equation
   70,189 : 150,209 = 150,209 : x
2. Step 2: Convert to fraction form
   70,189/150,209 = 150,209/x
3. Step 3: Cross multiply
   70,189x = 150,209 × 150,209
4. Step 4: Simplify right side
   70,189x = 22,562,743,681
5. Step 5: Solve for x
   x = 22,562,743,681/70,189
6. Step 6: Final answer
   x = 321,456.98