Finding the Third Proportional to 11,953 and 18,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,953 : 18,433.50 = 18,433.50 : x
2. Step 2: Convert to fraction form
   11,953/18,433.50 = 18,433.50/x
3. Step 3: Cross multiply
   11,953x = 18,433.50 × 18,433.50
4. Step 4: Simplify right side
   11,953x = 339,793,922.25
5. Step 5: Solve for x
   x = 339,793,922.25/11,953
6. Step 6: Final answer
   x = 28,427.50