Finding the Third Proportional to 2,535.19 and 5,428.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,535.19 : 5,428.69 = 5,428.69 : x
2. Step 2: Convert to fraction form
   2,535.19/5,428.69 = 5,428.69/x
3. Step 3: Cross multiply
   2,535.19x = 5,428.69 × 5,428.69
4. Step 4: Simplify right side
   2,535.19x = 29,470,647.97
5. Step 5: Solve for x
   x = 29,470,647.97/2,535.19
6. Step 6: Final answer
   x = 11,624.64