Finding the Third Proportional to 307.69 and 600.56

Step by Step Solution

1. Step 1: Write the proportion equation
   307.69 : 600.56 = 600.56 : x
2. Step 2: Convert to fraction form
   307.69/600.56 = 600.56/x
3. Step 3: Cross multiply
   307.69x = 600.56 × 600.56
4. Step 4: Simplify right side
   307.69x = 360,675.32
5. Step 5: Solve for x
   x = 360,675.32/307.69
6. Step 6: Final answer
   x = 1,172.21