Finding the Third Proportional to 12,955.88 and 19,809.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,955.88 : 19,809.38 = 19,809.38 : x
2. Step 2: Convert to fraction form
   12,955.88/19,809.38 = 19,809.38/x
3. Step 3: Cross multiply
   12,955.88x = 19,809.38 × 19,809.38
4. Step 4: Simplify right side
   12,955.88x = 392,411,337.89
5. Step 5: Solve for x
   x = 392,411,337.89/12,955.88
6. Step 6: Final answer
   x = 30,288.29