Finding the Third Proportional to 12,959.16 and 19,488.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.16 : 19,488.09 = 19,488.09 : x
2. Step 2: Convert to fraction form
   12,959.16/19,488.09 = 19,488.09/x
3. Step 3: Cross multiply
   12,959.16x = 19,488.09 × 19,488.09
4. Step 4: Simplify right side
   12,959.16x = 379,785,798.01
5. Step 5: Solve for x
   x = 379,785,798.01/12,959.16
6. Step 6: Final answer
   x = 29,306.37