Finding the Third Proportional to 5,455.50 and 7,994.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,455.50 : 7,994.25 = 7,994.25 : x
2. Step 2: Convert to fraction form
   5,455.50/7,994.25 = 7,994.25/x
3. Step 3: Cross multiply
   5,455.50x = 7,994.25 × 7,994.25
4. Step 4: Simplify right side
   5,455.50x = 63,908,033.06
5. Step 5: Solve for x
   x = 63,908,033.06/5,455.50
6. Step 6: Final answer
   x = 11,714.42