Finding the Third Proportional to 13,215.94 and 19,458.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,215.94 : 19,458.84 = 19,458.84 : x
2. Step 2: Convert to fraction form
   13,215.94/19,458.84 = 19,458.84/x
3. Step 3: Cross multiply
   13,215.94x = 19,458.84 × 19,458.84
4. Step 4: Simplify right side
   13,215.94x = 378,646,600.09
5. Step 5: Solve for x
   x = 378,646,600.09/13,215.94
6. Step 6: Final answer
   x = 28,650.76