Finding the Third Proportional to 1,557.56 and 3,245.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.56 : 3,245.91 = 3,245.91 : x
2. Step 2: Convert to fraction form
   1,557.56/3,245.91 = 3,245.91/x
3. Step 3: Cross multiply
   1,557.56x = 3,245.91 × 3,245.91
4. Step 4: Simplify right side
   1,557.56x = 10,535,907.38
5. Step 5: Solve for x
   x = 10,535,907.38/1,557.56
6. Step 6: Final answer
   x = 6,764.36