Finding the Third Proportional to 2,558.81 and 4,303.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.81 : 4,303.69 = 4,303.69 : x
2. Step 2: Convert to fraction form
   2,558.81/4,303.69 = 4,303.69/x
3. Step 3: Cross multiply
   2,558.81x = 4,303.69 × 4,303.69
4. Step 4: Simplify right side
   2,558.81x = 18,521,726.10
5. Step 5: Solve for x
   x = 18,521,726.10/2,558.81
6. Step 6: Final answer
   x = 7,238.41