Finding the Third Proportional to 2,904.19 and 4,310.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.19 : 4,310.72 = 4,310.72 : x
2. Step 2: Convert to fraction form
   2,904.19/4,310.72 = 4,310.72/x
3. Step 3: Cross multiply
   2,904.19x = 4,310.72 × 4,310.72
4. Step 4: Simplify right side
   2,904.19x = 18,582,296.14
5. Step 5: Solve for x
   x = 18,582,296.14/2,904.19
6. Step 6: Final answer
   x = 6,398.45