Finding the Third Proportional to 12,945 and 19,336.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945 : 19,336.50 = 19,336.50 : x
2. Step 2: Convert to fraction form
   12,945/19,336.50 = 19,336.50/x
3. Step 3: Cross multiply
   12,945x = 19,336.50 × 19,336.50
4. Step 4: Simplify right side
   12,945x = 373,900,232.25
5. Step 5: Solve for x
   x = 373,900,232.25/12,945
6. Step 6: Final answer
   x = 28,883.76