Finding the Third Proportional to 69,120 and 151,200

Step by Step Solution

1. Step 1: Write the proportion equation
   69,120 : 151,200 = 151,200 : x
2. Step 2: Convert to fraction form
   69,120/151,200 = 151,200/x
3. Step 3: Cross multiply
   69,120x = 151,200 × 151,200
4. Step 4: Simplify right side
   69,120x = 22,861,440,000
5. Step 5: Solve for x
   x = 22,861,440,000/69,120
6. Step 6: Final answer
   x = 330,750