Finding the Third Proportional to 2,558.81 and 3,473.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.81 : 3,473.72 = 3,473.72 : x
2. Step 2: Convert to fraction form
   2,558.81/3,473.72 = 3,473.72/x
3. Step 3: Cross multiply
   2,558.81x = 3,473.72 × 3,473.72
4. Step 4: Simplify right side
   2,558.81x = 12,066,721.95
5. Step 5: Solve for x
   x = 12,066,721.95/2,558.81
6. Step 6: Final answer
   x = 4,715.75