Finding the Third Proportional to 2,696.63 and 5,719.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,696.63 : 5,719.78 = 5,719.78 : x
2. Step 2: Convert to fraction form
   2,696.63/5,719.78 = 5,719.78/x
3. Step 3: Cross multiply
   2,696.63x = 5,719.78 × 5,719.78
4. Step 4: Simplify right side
   2,696.63x = 32,715,897.55
5. Step 5: Solve for x
   x = 32,715,897.55/2,696.63
6. Step 6: Final answer
   x = 12,132.16