Finding the Third Proportional to 5,167.55 and 7,810.17

Step by Step Solution

1. Step 1: Write the proportion equation
   5,167.55 : 7,810.17 = 7,810.17 : x
2. Step 2: Convert to fraction form
   5,167.55/7,810.17 = 7,810.17/x
3. Step 3: Cross multiply
   5,167.55x = 7,810.17 × 7,810.17
4. Step 4: Simplify right side
   5,167.55x = 60,998,784.72
5. Step 5: Solve for x
   x = 60,998,784.72/5,167.55
6. Step 6: Final answer
   x = 11,804.21