Finding the Third Proportional to 18,179.25 and 39,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,179.25 : 39,643.50 = 39,643.50 : x
2. Step 2: Convert to fraction form
   18,179.25/39,643.50 = 39,643.50/x
3. Step 3: Cross multiply
   18,179.25x = 39,643.50 × 39,643.50
4. Step 4: Simplify right side
   18,179.25x = 1,571,607,092.25
5. Step 5: Solve for x
   x = 1,571,607,092.25/18,179.25
6. Step 6: Final answer
   x = 86,450.60