Finding the Third Proportional to 13,040.63 and 19,809.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,040.63 : 19,809.38 = 19,809.38 : x
2. Step 2: Convert to fraction form
   13,040.63/19,809.38 = 19,809.38/x
3. Step 3: Cross multiply
   13,040.63x = 19,809.38 × 19,809.38
4. Step 4: Simplify right side
   13,040.63x = 392,411,337.89
5. Step 5: Solve for x
   x = 392,411,337.89/13,040.63
6. Step 6: Final answer
   x = 30,091.45