Finding the Third Proportional to 2,689.45 and 3,631.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.45 : 3,631.08 = 3,631.08 : x
2. Step 2: Convert to fraction form
   2,689.45/3,631.08 = 3,631.08/x
3. Step 3: Cross multiply
   2,689.45x = 3,631.08 × 3,631.08
4. Step 4: Simplify right side
   2,689.45x = 13,184,728.35
5. Step 5: Solve for x
   x = 13,184,728.35/2,689.45
6. Step 6: Final answer
   x = 4,902.38