Finding the Third Proportional to 5,365.50 and 7,555.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,365.50 : 7,555.50 = 7,555.50 : x
2. Step 2: Convert to fraction form
   5,365.50/7,555.50 = 7,555.50/x
3. Step 3: Cross multiply
   5,365.50x = 7,555.50 × 7,555.50
4. Step 4: Simplify right side
   5,365.50x = 57,085,580.25
5. Step 5: Solve for x
   x = 57,085,580.25/5,365.50
6. Step 6: Final answer
   x = 10,639.38