Finding the Third Proportional to 10,386 and 14,940

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386 : 14,940 = 14,940 : x
2. Step 2: Convert to fraction form
   10,386/14,940 = 14,940/x
3. Step 3: Cross multiply
   10,386x = 14,940 × 14,940
4. Step 4: Simplify right side
   10,386x = 223,203,600
5. Step 5: Solve for x
   x = 223,203,600/10,386
6. Step 6: Final answer
   x = 21,490.81