Finding the Third Proportional to 738.56 and 1,607.91

Step by Step Solution

1. Step 1: Write the proportion equation
   738.56 : 1,607.91 = 1,607.91 : x
2. Step 2: Convert to fraction form
   738.56/1,607.91 = 1,607.91/x
3. Step 3: Cross multiply
   738.56x = 1,607.91 × 1,607.91
4. Step 4: Simplify right side
   738.56x = 2,585,362.51
5. Step 5: Solve for x
   x = 2,585,362.51/738.56
6. Step 6: Final answer
   x = 3,500.53