Finding the Third Proportional to 36,128 and 53,144

Step by Step Solution

1. Step 1: Write the proportion equation
   36,128 : 53,144 = 53,144 : x
2. Step 2: Convert to fraction form
   36,128/53,144 = 53,144/x
3. Step 3: Cross multiply
   36,128x = 53,144 × 53,144
4. Step 4: Simplify right side
   36,128x = 2,824,284,736
5. Step 5: Solve for x
   x = 2,824,284,736/36,128
6. Step 6: Final answer
   x = 78,174.40