Finding the Third Proportional to 13,130.16 and 19,851.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,130.16 : 19,851.56 = 19,851.56 : x
2. Step 2: Convert to fraction form
   13,130.16/19,851.56 = 19,851.56/x
3. Step 3: Cross multiply
   13,130.16x = 19,851.56 × 19,851.56
4. Step 4: Simplify right side
   13,130.16x = 394,084,533.69
5. Step 5: Solve for x
   x = 394,084,533.69/13,130.16
6. Step 6: Final answer
   x = 30,013.70