Finding the Third Proportional to 12,228 and 19,436.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,228 : 19,436.25 = 19,436.25 : x
2. Step 2: Convert to fraction form
   12,228/19,436.25 = 19,436.25/x
3. Step 3: Cross multiply
   12,228x = 19,436.25 × 19,436.25
4. Step 4: Simplify right side
   12,228x = 377,767,814.06
5. Step 5: Solve for x
   x = 377,767,814.06/12,228
6. Step 6: Final answer
   x = 30,893.67