Finding the Third Proportional to 21,114 and 28,425

Step by Step Solution

1. Step 1: Write the proportion equation
   21,114 : 28,425 = 28,425 : x
2. Step 2: Convert to fraction form
   21,114/28,425 = 28,425/x
3. Step 3: Cross multiply
   21,114x = 28,425 × 28,425
4. Step 4: Simplify right side
   21,114x = 807,980,625
5. Step 5: Solve for x
   x = 807,980,625/21,114
6. Step 6: Final answer
   x = 38,267.53