Finding the Third Proportional to 601.25 and 913.25

Step by Step Solution

1. Step 1: Write the proportion equation
   601.25 : 913.25 = 913.25 : x
2. Step 2: Convert to fraction form
   601.25/913.25 = 913.25/x
3. Step 3: Cross multiply
   601.25x = 913.25 × 913.25
4. Step 4: Simplify right side
   601.25x = 834,025.56
5. Step 5: Solve for x
   x = 834,025.56/601.25
6. Step 6: Final answer
   x = 1,387.15