Finding the Third Proportional to 3,168.50 and 7,705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.50 : 7,705.25 = 7,705.25 : x
2. Step 2: Convert to fraction form
   3,168.50/7,705.25 = 7,705.25/x
3. Step 3: Cross multiply
   3,168.50x = 7,705.25 × 7,705.25
4. Step 4: Simplify right side
   3,168.50x = 59,370,877.56
5. Step 5: Solve for x
   x = 59,370,877.56/3,168.50
6. Step 6: Final answer
   x = 18,737.85