Finding the Third Proportional to 10,240 and 13,672

Step by Step Solution

1. Step 1: Write the proportion equation
   10,240 : 13,672 = 13,672 : x
2. Step 2: Convert to fraction form
   10,240/13,672 = 13,672/x
3. Step 3: Cross multiply
   10,240x = 13,672 × 13,672
4. Step 4: Simplify right side
   10,240x = 186,923,584
5. Step 5: Solve for x
   x = 186,923,584/10,240
6. Step 6: Final answer
   x = 18,254.26