Finding the Third Proportional to 8,654.06 and 12,966.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,654.06 : 12,966.56 = 12,966.56 : x
2. Step 2: Convert to fraction form
   8,654.06/12,966.56 = 12,966.56/x
3. Step 3: Cross multiply
   8,654.06x = 12,966.56 × 12,966.56
4. Step 4: Simplify right side
   8,654.06x = 168,131,743.07
5. Step 5: Solve for x
   x = 168,131,743.07/8,654.06
6. Step 6: Final answer
   x = 19,428.07