Finding the Third Proportional to 4,912.50 and 7,518.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,912.50 : 7,518.38 = 7,518.38 : x
2. Step 2: Convert to fraction form
   4,912.50/7,518.38 = 7,518.38/x
3. Step 3: Cross multiply
   4,912.50x = 7,518.38 × 7,518.38
4. Step 4: Simplify right side
   4,912.50x = 56,525,962.64
5. Step 5: Solve for x
   x = 56,525,962.64/4,912.50
6. Step 6: Final answer
   x = 11,506.56