Finding the Third Proportional to 18,111.09 and 38,900.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111.09 : 38,900.25 = 38,900.25 : x
2. Step 2: Convert to fraction form
   18,111.09/38,900.25 = 38,900.25/x
3. Step 3: Cross multiply
   18,111.09x = 38,900.25 × 38,900.25
4. Step 4: Simplify right side
   18,111.09x = 1,513,229,450.06
5. Step 5: Solve for x
   x = 1,513,229,450.06/18,111.09
6. Step 6: Final answer
   x = 83,552.63