Finding the Third Proportional to 69,128 and 151,648

Step by Step Solution

1. Step 1: Write the proportion equation
   69,128 : 151,648 = 151,648 : x
2. Step 2: Convert to fraction form
   69,128/151,648 = 151,648/x
3. Step 3: Cross multiply
   69,128x = 151,648 × 151,648
4. Step 4: Simplify right side
   69,128x = 22,997,115,904
5. Step 5: Solve for x
   x = 22,997,115,904/69,128
6. Step 6: Final answer
   x = 332,674.40