Finding the Third Proportional to 2,521.13 and 5,157.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.13 : 5,157.42 = 5,157.42 : x
2. Step 2: Convert to fraction form
   2,521.13/5,157.42 = 5,157.42/x
3. Step 3: Cross multiply
   2,521.13x = 5,157.42 × 5,157.42
4. Step 4: Simplify right side
   2,521.13x = 26,599,000.40
5. Step 5: Solve for x
   x = 26,599,000.40/2,521.13
6. Step 6: Final answer
   x = 10,550.45