Finding the Third Proportional to 1,405.48 and 3,060.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,405.48 : 3,060.28 = 3,060.28 : x
2. Step 2: Convert to fraction form
   1,405.48/3,060.28 = 3,060.28/x
3. Step 3: Cross multiply
   1,405.48x = 3,060.28 × 3,060.28
4. Step 4: Simplify right side
   1,405.48x = 9,365,321.33
5. Step 5: Solve for x
   x = 9,365,321.33/1,405.48
6. Step 6: Final answer
   x = 6,663.45