Finding the Third Proportional to 14,421.50 and 30,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,421.50 : 30,997.50 = 30,997.50 : x
2. Step 2: Convert to fraction form
   14,421.50/30,997.50 = 30,997.50/x
3. Step 3: Cross multiply
   14,421.50x = 30,997.50 × 30,997.50
4. Step 4: Simplify right side
   14,421.50x = 960,845,006.25
5. Step 5: Solve for x
   x = 960,845,006.25/14,421.50
6. Step 6: Final answer
   x = 66,625.87