Finding the Third Proportional to 3,458.81 and 8,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,458.81 : 8,123.06 = 8,123.06 : x
2. Step 2: Convert to fraction form
   3,458.81/8,123.06 = 8,123.06/x
3. Step 3: Cross multiply
   3,458.81x = 8,123.06 × 8,123.06
4. Step 4: Simplify right side
   3,458.81x = 65,984,144.38
5. Step 5: Solve for x
   x = 65,984,144.38/3,458.81
6. Step 6: Final answer
   x = 19,077.11