Finding the Third Proportional to 1,109.69 and 2,428.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.69 : 2,428.16 = 2,428.16 : x
2. Step 2: Convert to fraction form
   1,109.69/2,428.16 = 2,428.16/x
3. Step 3: Cross multiply
   1,109.69x = 2,428.16 × 2,428.16
4. Step 4: Simplify right side
   1,109.69x = 5,895,942.77
5. Step 5: Solve for x
   x = 5,895,942.77/1,109.69
6. Step 6: Final answer
   x = 5,313.16