Finding the Third Proportional to 12,408 and 18,973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,408 : 18,973.50 = 18,973.50 : x
2. Step 2: Convert to fraction form
   12,408/18,973.50 = 18,973.50/x
3. Step 3: Cross multiply
   12,408x = 18,973.50 × 18,973.50
4. Step 4: Simplify right side
   12,408x = 359,993,702.25
5. Step 5: Solve for x
   x = 359,993,702.25/12,408
6. Step 6: Final answer
   x = 29,013.03