Finding the Third Proportional to 12,668.50 and 19,078.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,668.50 : 19,078.75 = 19,078.75 : x
2. Step 2: Convert to fraction form
   12,668.50/19,078.75 = 19,078.75/x
3. Step 3: Cross multiply
   12,668.50x = 19,078.75 × 19,078.75
4. Step 4: Simplify right side
   12,668.50x = 363,998,701.56
5. Step 5: Solve for x
   x = 363,998,701.56/12,668.50
6. Step 6: Final answer
   x = 28,732.58