Finding the Third Proportional to 18,201.38 and 38,588.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,201.38 : 38,588.63 = 38,588.63 : x
2. Step 2: Convert to fraction form
   18,201.38/38,588.63 = 38,588.63/x
3. Step 3: Cross multiply
   18,201.38x = 38,588.63 × 38,588.63
4. Step 4: Simplify right side
   18,201.38x = 1,489,081,979.39
5. Step 5: Solve for x
   x = 1,489,081,979.39/18,201.38
6. Step 6: Final answer
   x = 81,811.51