Finding the Third Proportional to 5,115.66 and 9,451.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,115.66 : 9,451.69 = 9,451.69 : x
2. Step 2: Convert to fraction form
   5,115.66/9,451.69 = 9,451.69/x
3. Step 3: Cross multiply
   5,115.66x = 9,451.69 × 9,451.69
4. Step 4: Simplify right side
   5,115.66x = 89,334,396.60
5. Step 5: Solve for x
   x = 89,334,396.60/5,115.66
6. Step 6: Final answer
   x = 17,462.94