Finding the Third Proportional to 12,288.94 and 18,534.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,288.94 : 18,534.09 = 18,534.09 : x
2. Step 2: Convert to fraction form
   12,288.94/18,534.09 = 18,534.09/x
3. Step 3: Cross multiply
   12,288.94x = 18,534.09 × 18,534.09
4. Step 4: Simplify right side
   12,288.94x = 343,512,631.13
5. Step 5: Solve for x
   x = 343,512,631.13/12,288.94
6. Step 6: Final answer
   x = 27,953.00