Finding the Third Proportional to 1,611.56 and 3,516.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611.56 : 3,516.56 = 3,516.56 : x
2. Step 2: Convert to fraction form
   1,611.56/3,516.56 = 3,516.56/x
3. Step 3: Cross multiply
   1,611.56x = 3,516.56 × 3,516.56
4. Step 4: Simplify right side
   1,611.56x = 12,366,211.82
5. Step 5: Solve for x
   x = 12,366,211.82/1,611.56
6. Step 6: Final answer
   x = 7,673.43