Finding the Third Proportional to 4,555.30 and 7,315.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,555.30 : 7,315.63 = 7,315.63 : x
2. Step 2: Convert to fraction form
   4,555.30/7,315.63 = 7,315.63/x
3. Step 3: Cross multiply
   4,555.30x = 7,315.63 × 7,315.63
4. Step 4: Simplify right side
   4,555.30x = 53,518,426.29
5. Step 5: Solve for x
   x = 53,518,426.29/4,555.30
6. Step 6: Final answer
   x = 11,748.60