Finding the Third Proportional to 1,242.42 and 2,241.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242.42 : 2,241.21 = 2,241.21 : x
2. Step 2: Convert to fraction form
   1,242.42/2,241.21 = 2,241.21/x
3. Step 3: Cross multiply
   1,242.42x = 2,241.21 × 2,241.21
4. Step 4: Simplify right side
   1,242.42x = 5,023,026.47
5. Step 5: Solve for x
   x = 5,023,026.47/1,242.42
6. Step 6: Final answer
   x = 4,042.93