Finding the Third Proportional to 14,418.38 and 30,991.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,418.38 : 30,991.88 = 30,991.88 : x
2. Step 2: Convert to fraction form
   14,418.38/30,991.88 = 30,991.88/x
3. Step 3: Cross multiply
   14,418.38x = 30,991.88 × 30,991.88
4. Step 4: Simplify right side
   14,418.38x = 960,496,316.02
5. Step 5: Solve for x
   x = 960,496,316.02/14,418.38
6. Step 6: Final answer
   x = 66,616.13