Finding the Third Proportional to 70,128 and 153,360

Step by Step Solution

1. Step 1: Write the proportion equation
   70,128 : 153,360 = 153,360 : x
2. Step 2: Convert to fraction form
   70,128/153,360 = 153,360/x
3. Step 3: Cross multiply
   70,128x = 153,360 × 153,360
4. Step 4: Simplify right side
   70,128x = 23,519,289,600
5. Step 5: Solve for x
   x = 23,519,289,600/70,128
6. Step 6: Final answer
   x = 335,376.59