Finding the Third Proportional to 7,745.63 and 12,080.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,745.63 : 12,080.81 = 12,080.81 : x
2. Step 2: Convert to fraction form
   7,745.63/12,080.81 = 12,080.81/x
3. Step 3: Cross multiply
   7,745.63x = 12,080.81 × 12,080.81
4. Step 4: Simplify right side
   7,745.63x = 145,946,030.66
5. Step 5: Solve for x
   x = 145,946,030.66/7,745.63
6. Step 6: Final answer
   x = 18,842.38