Finding the Third Proportional to 89,136 and 131,040

Step by Step Solution

1. Step 1: Write the proportion equation
   89,136 : 131,040 = 131,040 : x
2. Step 2: Convert to fraction form
   89,136/131,040 = 131,040/x
3. Step 3: Cross multiply
   89,136x = 131,040 × 131,040
4. Step 4: Simplify right side
   89,136x = 17,171,481,600
5. Step 5: Solve for x
   x = 17,171,481,600/89,136
6. Step 6: Final answer
   x = 192,643.62