Finding the Third Proportional to 12,916.97 and 18,964.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916.97 : 18,964.59 = 18,964.59 : x
2. Step 2: Convert to fraction form
   12,916.97/18,964.59 = 18,964.59/x
3. Step 3: Cross multiply
   12,916.97x = 18,964.59 × 18,964.59
4. Step 4: Simplify right side
   12,916.97x = 359,655,663.31
5. Step 5: Solve for x
   x = 359,655,663.31/12,916.97
6. Step 6: Final answer
   x = 27,843.66