Finding the Third Proportional to 1,089.75 and 1,475.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089.75 : 1,475.25 = 1,475.25 : x
2. Step 2: Convert to fraction form
   1,089.75/1,475.25 = 1,475.25/x
3. Step 3: Cross multiply
   1,089.75x = 1,475.25 × 1,475.25
4. Step 4: Simplify right side
   1,089.75x = 2,176,362.56
5. Step 5: Solve for x
   x = 2,176,362.56/1,089.75
6. Step 6: Final answer
   x = 1,997.12