Finding the Third Proportional to 1,553.06 and 3,429.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553.06 : 3,429.56 = 3,429.56 : x
2. Step 2: Convert to fraction form
   1,553.06/3,429.56 = 3,429.56/x
3. Step 3: Cross multiply
   1,553.06x = 3,429.56 × 3,429.56
4. Step 4: Simplify right side
   1,553.06x = 11,761,898.94
5. Step 5: Solve for x
   x = 11,761,898.94/1,553.06
6. Step 6: Final answer
   x = 7,573.36