Finding the Third Proportional to 18,300.94 and 39,981.09

Step by Step Solution

1. Step 1: Write the proportion equation
   18,300.94 : 39,981.09 = 39,981.09 : x
2. Step 2: Convert to fraction form
   18,300.94/39,981.09 = 39,981.09/x
3. Step 3: Cross multiply
   18,300.94x = 39,981.09 × 39,981.09
4. Step 4: Simplify right side
   18,300.94x = 1,598,487,857.45
5. Step 5: Solve for x
   x = 1,598,487,857.45/18,300.94
6. Step 6: Final answer
   x = 87,344.59