Finding the Third Proportional to 7,701.75 and 12,091.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,701.75 : 12,091.78 = 12,091.78 : x
2. Step 2: Convert to fraction form
   7,701.75/12,091.78 = 12,091.78/x
3. Step 3: Cross multiply
   7,701.75x = 12,091.78 × 12,091.78
4. Step 4: Simplify right side
   7,701.75x = 146,211,173.80
5. Step 5: Solve for x
   x = 146,211,173.80/7,701.75
6. Step 6: Final answer
   x = 18,984.15