Finding the Third Proportional to 18,792 and 39,693.38

Step by Step Solution

1. Step 1: Write the proportion equation
   18,792 : 39,693.38 = 39,693.38 : x
2. Step 2: Convert to fraction form
   18,792/39,693.38 = 39,693.38/x
3. Step 3: Cross multiply
   18,792x = 39,693.38 × 39,693.38
4. Step 4: Simplify right side
   18,792x = 1,575,564,018.89
5. Step 5: Solve for x
   x = 1,575,564,018.89/18,792
6. Step 6: Final answer
   x = 83,842.27