Finding the Third Proportional to 2,598.35 and 5,381.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.35 : 5,381.28 = 5,381.28 : x
2. Step 2: Convert to fraction form
   2,598.35/5,381.28 = 5,381.28/x
3. Step 3: Cross multiply
   2,598.35x = 5,381.28 × 5,381.28
4. Step 4: Simplify right side
   2,598.35x = 28,958,166.87
5. Step 5: Solve for x
   x = 28,958,166.87/2,598.35
6. Step 6: Final answer
   x = 11,144.81