Finding the Third Proportional to 7,769.25 and 12,355.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,769.25 : 12,355.88 = 12,355.88 : x
2. Step 2: Convert to fraction form
   7,769.25/12,355.88 = 12,355.88/x
3. Step 3: Cross multiply
   7,769.25x = 12,355.88 × 12,355.88
4. Step 4: Simplify right side
   7,769.25x = 152,667,647.02
5. Step 5: Solve for x
   x = 152,667,647.02/7,769.25
6. Step 6: Final answer
   x = 19,650.24