Finding the Third Proportional to 8,123 and 12,545

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123 : 12,545 = 12,545 : x
2. Step 2: Convert to fraction form
   8,123/12,545 = 12,545/x
3. Step 3: Cross multiply
   8,123x = 12,545 × 12,545
4. Step 4: Simplify right side
   8,123x = 157,377,025
5. Step 5: Solve for x
   x = 157,377,025/8,123
6. Step 6: Final answer
   x = 19,374.25