Finding the Third Proportional to 12,156.75 and 17,776.13

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156.75 : 17,776.13 = 17,776.13 : x
2. Step 2: Convert to fraction form
   12,156.75/17,776.13 = 17,776.13/x
3. Step 3: Cross multiply
   12,156.75x = 17,776.13 × 17,776.13
4. Step 4: Simplify right side
   12,156.75x = 315,990,620.02
5. Step 5: Solve for x
   x = 315,990,620.02/12,156.75
6. Step 6: Final answer
   x = 25,993.02