Finding the Third Proportional to 11,376 and 12,608

Step by Step Solution

1. Step 1: Write the proportion equation
   11,376 : 12,608 = 12,608 : x
2. Step 2: Convert to fraction form
   11,376/12,608 = 12,608/x
3. Step 3: Cross multiply
   11,376x = 12,608 × 12,608
4. Step 4: Simplify right side
   11,376x = 158,961,664
5. Step 5: Solve for x
   x = 158,961,664/11,376
6. Step 6: Final answer
   x = 13,973.42