Finding the Third Proportional to 21,193 and 28,123

Step by Step Solution

1. Step 1: Write the proportion equation
   21,193 : 28,123 = 28,123 : x
2. Step 2: Convert to fraction form
   21,193/28,123 = 28,123/x
3. Step 3: Cross multiply
   21,193x = 28,123 × 28,123
4. Step 4: Simplify right side
   21,193x = 790,903,129
5. Step 5: Solve for x
   x = 790,903,129/21,193
6. Step 6: Final answer
   x = 37,319.07