Finding the Third Proportional to 12,826.50 and 19,188

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826.50 : 19,188 = 19,188 : x
2. Step 2: Convert to fraction form
   12,826.50/19,188 = 19,188/x
3. Step 3: Cross multiply
   12,826.50x = 19,188 × 19,188
4. Step 4: Simplify right side
   12,826.50x = 368,179,344
5. Step 5: Solve for x
   x = 368,179,344/12,826.50
6. Step 6: Final answer
   x = 28,704.58