Finding the Third Proportional to 14,145 and 30,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,145 : 30,640.50 = 30,640.50 : x
2. Step 2: Convert to fraction form
   14,145/30,640.50 = 30,640.50/x
3. Step 3: Cross multiply
   14,145x = 30,640.50 × 30,640.50
4. Step 4: Simplify right side
   14,145x = 938,840,240.25
5. Step 5: Solve for x
   x = 938,840,240.25/14,145
6. Step 6: Final answer
   x = 66,372.59