Finding the Third Proportional to 21,444 and 28,818

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444 : 28,818 = 28,818 : x
2. Step 2: Convert to fraction form
   21,444/28,818 = 28,818/x
3. Step 3: Cross multiply
   21,444x = 28,818 × 28,818
4. Step 4: Simplify right side
   21,444x = 830,477,124
5. Step 5: Solve for x
   x = 830,477,124/21,444
6. Step 6: Final answer
   x = 38,727.72