Finding the Third Proportional to 3,315.09 and 4,910.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,315.09 : 4,910.63 = 4,910.63 : x
2. Step 2: Convert to fraction form
   3,315.09/4,910.63 = 4,910.63/x
3. Step 3: Cross multiply
   3,315.09x = 4,910.63 × 4,910.63
4. Step 4: Simplify right side
   3,315.09x = 24,114,237.89
5. Step 5: Solve for x
   x = 24,114,237.89/3,315.09
6. Step 6: Final answer
   x = 7,274.07