Finding the Third Proportional to 113,136 and 172,104

Step by Step Solution

1. Step 1: Write the proportion equation
   113,136 : 172,104 = 172,104 : x
2. Step 2: Convert to fraction form
   113,136/172,104 = 172,104/x
3. Step 3: Cross multiply
   113,136x = 172,104 × 172,104
4. Step 4: Simplify right side
   113,136x = 29,619,786,816
5. Step 5: Solve for x
   x = 29,619,786,816/113,136
6. Step 6: Final answer
   x = 261,806.91