Finding the Third Proportional to 3,160.69 and 4,342.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,160.69 : 4,342.78 = 4,342.78 : x
2. Step 2: Convert to fraction form
   3,160.69/4,342.78 = 4,342.78/x
3. Step 3: Cross multiply
   3,160.69x = 4,342.78 × 4,342.78
4. Step 4: Simplify right side
   3,160.69x = 18,859,748.99
5. Step 5: Solve for x
   x = 18,859,748.99/3,160.69
6. Step 6: Final answer
   x = 5,966.98