Finding the Third Proportional to 1,403.18 and 3,065.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.18 : 3,065.86 = 3,065.86 : x
2. Step 2: Convert to fraction form
   1,403.18/3,065.86 = 3,065.86/x
3. Step 3: Cross multiply
   1,403.18x = 3,065.86 × 3,065.86
4. Step 4: Simplify right side
   1,403.18x = 9,399,484.73
5. Step 5: Solve for x
   x = 9,399,484.73/1,403.18
6. Step 6: Final answer
   x = 6,698.69