Finding the Third Proportional to 12,090.94 and 18,682.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,090.94 : 18,682.31 = 18,682.31 : x
2. Step 2: Convert to fraction form
   12,090.94/18,682.31 = 18,682.31/x
3. Step 3: Cross multiply
   12,090.94x = 18,682.31 × 18,682.31
4. Step 4: Simplify right side
   12,090.94x = 349,028,800.35
5. Step 5: Solve for x
   x = 349,028,800.35/12,090.94
6. Step 6: Final answer
   x = 28,866.98