Finding the Third Proportional to 5,622.75 and 8,435.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,622.75 : 8,435.25 = 8,435.25 : x
2. Step 2: Convert to fraction form
   5,622.75/8,435.25 = 8,435.25/x
3. Step 3: Cross multiply
   5,622.75x = 8,435.25 × 8,435.25
4. Step 4: Simplify right side
   5,622.75x = 71,153,442.56
5. Step 5: Solve for x
   x = 71,153,442.56/5,622.75
6. Step 6: Final answer
   x = 12,654.56