Finding the Third Proportional to 7,939.50 and 18,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,939.50 : 18,460.50 = 18,460.50 : x
2. Step 2: Convert to fraction form
   7,939.50/18,460.50 = 18,460.50/x
3. Step 3: Cross multiply
   7,939.50x = 18,460.50 × 18,460.50
4. Step 4: Simplify right side
   7,939.50x = 340,790,060.25
5. Step 5: Solve for x
   x = 340,790,060.25/7,939.50
6. Step 6: Final answer
   x = 42,923.37