Finding the Third Proportional to 12,191.25 and 16,558.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,191.25 : 16,558.88 = 16,558.88 : x
2. Step 2: Convert to fraction form
   12,191.25/16,558.88 = 16,558.88/x
3. Step 3: Cross multiply
   12,191.25x = 16,558.88 × 16,558.88
4. Step 4: Simplify right side
   12,191.25x = 274,196,341.27
5. Step 5: Solve for x
   x = 274,196,341.27/12,191.25
6. Step 6: Final answer
   x = 22,491.24