Finding the Third Proportional to 520.17 and 1,131.05

Step by Step Solution

1. Step 1: Write the proportion equation
   520.17 : 1,131.05 = 1,131.05 : x
2. Step 2: Convert to fraction form
   520.17/1,131.05 = 1,131.05/x
3. Step 3: Cross multiply
   520.17x = 1,131.05 × 1,131.05
4. Step 4: Simplify right side
   520.17x = 1,279,267.03
5. Step 5: Solve for x
   x = 1,279,267.03/520.17
6. Step 6: Final answer
   x = 2,459.32