Finding the Third Proportional to 3,457.69 and 5,158.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457.69 : 5,158.69 = 5,158.69 : x
2. Step 2: Convert to fraction form
   3,457.69/5,158.69 = 5,158.69/x
3. Step 3: Cross multiply
   3,457.69x = 5,158.69 × 5,158.69
4. Step 4: Simplify right side
   3,457.69x = 26,612,056.72
5. Step 5: Solve for x
   x = 26,612,056.72/3,457.69
6. Step 6: Final answer
   x = 7,696.49