Finding the Third Proportional to 2,912.06 and 4,689.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912.06 : 4,689.56 = 4,689.56 : x
2. Step 2: Convert to fraction form
   2,912.06/4,689.56 = 4,689.56/x
3. Step 3: Cross multiply
   2,912.06x = 4,689.56 × 4,689.56
4. Step 4: Simplify right side
   2,912.06x = 21,991,996.44
5. Step 5: Solve for x
   x = 21,991,996.44/2,912.06
6. Step 6: Final answer
   x = 7,552.03