Finding the Third Proportional to 9,156 and 13,776

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156 : 13,776 = 13,776 : x
2. Step 2: Convert to fraction form
   9,156/13,776 = 13,776/x
3. Step 3: Cross multiply
   9,156x = 13,776 × 13,776
4. Step 4: Simplify right side
   9,156x = 189,778,176
5. Step 5: Solve for x
   x = 189,778,176/9,156
6. Step 6: Final answer
   x = 20,727.19