Finding the Third Proportional to 18,521.16 and 40,555.69

Step by Step Solution

1. Step 1: Write the proportion equation
   18,521.16 : 40,555.69 = 40,555.69 : x
2. Step 2: Convert to fraction form
   18,521.16/40,555.69 = 40,555.69/x
3. Step 3: Cross multiply
   18,521.16x = 40,555.69 × 40,555.69
4. Step 4: Simplify right side
   18,521.16x = 1,644,763,788.60
5. Step 5: Solve for x
   x = 1,644,763,788.60/18,521.16
6. Step 6: Final answer
   x = 88,804.60