Finding the Third Proportional to 1,229.34 and 2,689.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.34 : 2,689.03 = 2,689.03 : x
2. Step 2: Convert to fraction form
   1,229.34/2,689.03 = 2,689.03/x
3. Step 3: Cross multiply
   1,229.34x = 2,689.03 × 2,689.03
4. Step 4: Simplify right side
   1,229.34x = 7,230,889.06
5. Step 5: Solve for x
   x = 7,230,889.06/1,229.34
6. Step 6: Final answer
   x = 5,881.91