Finding the Third Proportional to 10,989 and 12,573

Step by Step Solution

1. Step 1: Write the proportion equation
   10,989 : 12,573 = 12,573 : x
2. Step 2: Convert to fraction form
   10,989/12,573 = 12,573/x
3. Step 3: Cross multiply
   10,989x = 12,573 × 12,573
4. Step 4: Simplify right side
   10,989x = 158,080,329
5. Step 5: Solve for x
   x = 158,080,329/10,989
6. Step 6: Final answer
   x = 14,385.32