Finding the Third Proportional to 12,155.06 and 16,407.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,155.06 : 16,407.56 = 16,407.56 : x
2. Step 2: Convert to fraction form
   12,155.06/16,407.56 = 16,407.56/x
3. Step 3: Cross multiply
   12,155.06x = 16,407.56 × 16,407.56
4. Step 4: Simplify right side
   12,155.06x = 269,208,107.19
5. Step 5: Solve for x
   x = 269,208,107.19/12,155.06
6. Step 6: Final answer
   x = 22,147.82