Finding the Third Proportional to 6,605.50 and 10,880.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,605.50 : 10,880.25 = 10,880.25 : x
2. Step 2: Convert to fraction form
   6,605.50/10,880.25 = 10,880.25/x
3. Step 3: Cross multiply
   6,605.50x = 10,880.25 × 10,880.25
4. Step 4: Simplify right side
   6,605.50x = 118,379,840.06
5. Step 5: Solve for x
   x = 118,379,840.06/6,605.50
6. Step 6: Final answer
   x = 17,921.40