Finding the Third Proportional to 5,330.81 and 8,361.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,330.81 : 8,361.98 = 8,361.98 : x
2. Step 2: Convert to fraction form
   5,330.81/8,361.98 = 8,361.98/x
3. Step 3: Cross multiply
   5,330.81x = 8,361.98 × 8,361.98
4. Step 4: Simplify right side
   5,330.81x = 69,922,782.69
5. Step 5: Solve for x
   x = 69,922,782.69/5,330.81
6. Step 6: Final answer
   x = 13,116.72