Finding the Third Proportional to 12,600.56 and 19,872.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,600.56 : 19,872.84 = 19,872.84 : x
2. Step 2: Convert to fraction form
   12,600.56/19,872.84 = 19,872.84/x
3. Step 3: Cross multiply
   12,600.56x = 19,872.84 × 19,872.84
4. Step 4: Simplify right side
   12,600.56x = 394,929,918.71
5. Step 5: Solve for x
   x = 394,929,918.71/12,600.56
6. Step 6: Final answer
   x = 31,342.25