Finding the Third Proportional to 21,530 and 28,932

Step by Step Solution

1. Step 1: Write the proportion equation
   21,530 : 28,932 = 28,932 : x
2. Step 2: Convert to fraction form
   21,530/28,932 = 28,932/x
3. Step 3: Cross multiply
   21,530x = 28,932 × 28,932
4. Step 4: Simplify right side
   21,530x = 837,060,624
5. Step 5: Solve for x
   x = 837,060,624/21,530
6. Step 6: Final answer
   x = 38,878.80