Finding the Third Proportional to 12,040.88 and 15,976.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040.88 : 15,976.69 = 15,976.69 : x
2. Step 2: Convert to fraction form
   12,040.88/15,976.69 = 15,976.69/x
3. Step 3: Cross multiply
   12,040.88x = 15,976.69 × 15,976.69
4. Step 4: Simplify right side
   12,040.88x = 255,254,543.47
5. Step 5: Solve for x
   x = 255,254,543.47/12,040.88
6. Step 6: Final answer
   x = 21,199.00