Finding the Third Proportional to 18,998 and 41,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,998 : 41,640.50 = 41,640.50 : x
2. Step 2: Convert to fraction form
   18,998/41,640.50 = 41,640.50/x
3. Step 3: Cross multiply
   18,998x = 41,640.50 × 41,640.50
4. Step 4: Simplify right side
   18,998x = 1,733,931,240.25
5. Step 5: Solve for x
   x = 1,733,931,240.25/18,998
6. Step 6: Final answer
   x = 91,269.15