Finding the Third Proportional to 3,429 and 5,012.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429 : 5,012.72 = 5,012.72 : x
2. Step 2: Convert to fraction form
   3,429/5,012.72 = 5,012.72/x
3. Step 3: Cross multiply
   3,429x = 5,012.72 × 5,012.72
4. Step 4: Simplify right side
   3,429x = 25,127,349.27
5. Step 5: Solve for x
   x = 25,127,349.27/3,429
6. Step 6: Final answer
   x = 7,327.89