Finding the Third Proportional to 6,643.75 and 10,142

Step by Step Solution

1. Step 1: Write the proportion equation
   6,643.75 : 10,142 = 10,142 : x
2. Step 2: Convert to fraction form
   6,643.75/10,142 = 10,142/x
3. Step 3: Cross multiply
   6,643.75x = 10,142 × 10,142
4. Step 4: Simplify right side
   6,643.75x = 102,860,164
5. Step 5: Solve for x
   x = 102,860,164/6,643.75
6. Step 6: Final answer
   x = 15,482.24