Finding the Third Proportional to 12,216.75 and 19,417.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216.75 : 19,417.88 = 19,417.88 : x
2. Step 2: Convert to fraction form
   12,216.75/19,417.88 = 19,417.88/x
3. Step 3: Cross multiply
   12,216.75x = 19,417.88 × 19,417.88
4. Step 4: Simplify right side
   12,216.75x = 377,053,869.52
5. Step 5: Solve for x
   x = 377,053,869.52/12,216.75
6. Step 6: Final answer
   x = 30,863.68