Finding the Third Proportional to 30,658.50 and 66,845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,658.50 : 66,845.25 = 66,845.25 : x
2. Step 2: Convert to fraction form
   30,658.50/66,845.25 = 66,845.25/x
3. Step 3: Cross multiply
   30,658.50x = 66,845.25 × 66,845.25
4. Step 4: Simplify right side
   30,658.50x = 4,468,287,447.56
5. Step 5: Solve for x
   x = 4,468,287,447.56/30,658.50
6. Step 6: Final answer
   x = 145,743.84