Finding the Third Proportional to 21,036 and 28,212

Step by Step Solution

1. Step 1: Write the proportion equation
   21,036 : 28,212 = 28,212 : x
2. Step 2: Convert to fraction form
   21,036/28,212 = 28,212/x
3. Step 3: Cross multiply
   21,036x = 28,212 × 28,212
4. Step 4: Simplify right side
   21,036x = 795,916,944
5. Step 5: Solve for x
   x = 795,916,944/21,036
6. Step 6: Final answer
   x = 37,835.95