Finding the Third Proportional to 12,132 and 15,606

Step by Step Solution

1. Step 1: Write the proportion equation
   12,132 : 15,606 = 15,606 : x
2. Step 2: Convert to fraction form
   12,132/15,606 = 15,606/x
3. Step 3: Cross multiply
   12,132x = 15,606 × 15,606
4. Step 4: Simplify right side
   12,132x = 243,547,236
5. Step 5: Solve for x
   x = 243,547,236/12,132
6. Step 6: Final answer
   x = 20,074.78