Finding the Third Proportional to 7,906.50 and 18,518.06

Step by Step Solution

1. Step 1: Write the proportion equation
   7,906.50 : 18,518.06 = 18,518.06 : x
2. Step 2: Convert to fraction form
   7,906.50/18,518.06 = 18,518.06/x
3. Step 3: Cross multiply
   7,906.50x = 18,518.06 × 18,518.06
4. Step 4: Simplify right side
   7,906.50x = 342,918,638.75
5. Step 5: Solve for x
   x = 342,918,638.75/7,906.50
6. Step 6: Final answer
   x = 43,371.74