Finding the Third Proportional to 18,510.50 and 39,976.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,510.50 : 39,976.25 = 39,976.25 : x
2. Step 2: Convert to fraction form
   18,510.50/39,976.25 = 39,976.25/x
3. Step 3: Cross multiply
   18,510.50x = 39,976.25 × 39,976.25
4. Step 4: Simplify right side
   18,510.50x = 1,598,100,564.06
5. Step 5: Solve for x
   x = 1,598,100,564.06/18,510.50
6. Step 6: Final answer
   x = 86,334.81