Finding the Third Proportional to 4,395.50 and 7,816.75

Step by Step Solution

1. Step 1: Write the proportion equation
   4,395.50 : 7,816.75 = 7,816.75 : x
2. Step 2: Convert to fraction form
   4,395.50/7,816.75 = 7,816.75/x
3. Step 3: Cross multiply
   4,395.50x = 7,816.75 × 7,816.75
4. Step 4: Simplify right side
   4,395.50x = 61,101,580.56
5. Step 5: Solve for x
   x = 61,101,580.56/4,395.50
6. Step 6: Final answer
   x = 13,900.94