Finding the Third Proportional to 13,983 and 30,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,983 : 30,418.50 = 30,418.50 : x
2. Step 2: Convert to fraction form
   13,983/30,418.50 = 30,418.50/x
3. Step 3: Cross multiply
   13,983x = 30,418.50 × 30,418.50
4. Step 4: Simplify right side
   13,983x = 925,285,142.25
5. Step 5: Solve for x
   x = 925,285,142.25/13,983
6. Step 6: Final answer
   x = 66,172.15