Finding the Third Proportional to 18,821.25 and 28,168.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,821.25 : 28,168.88 = 28,168.88 : x
2. Step 2: Convert to fraction form
   18,821.25/28,168.88 = 28,168.88/x
3. Step 3: Cross multiply
   18,821.25x = 28,168.88 × 28,168.88
4. Step 4: Simplify right side
   18,821.25x = 793,485,518.77
5. Step 5: Solve for x
   x = 793,485,518.77/18,821.25
6. Step 6: Final answer
   x = 42,159.02