Finding the Third Proportional to 18,625.50 and 39,917.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,625.50 : 39,917.25 = 39,917.25 : x
2. Step 2: Convert to fraction form
   18,625.50/39,917.25 = 39,917.25/x
3. Step 3: Cross multiply
   18,625.50x = 39,917.25 × 39,917.25
4. Step 4: Simplify right side
   18,625.50x = 1,593,386,847.56
5. Step 5: Solve for x
   x = 1,593,386,847.56/18,625.50
6. Step 6: Final answer
   x = 85,548.68