Finding the Third Proportional to 1,486.69 and 3,256.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,486.69 : 3,256.88 = 3,256.88 : x
2. Step 2: Convert to fraction form
   1,486.69/3,256.88 = 3,256.88/x
3. Step 3: Cross multiply
   1,486.69x = 3,256.88 × 3,256.88
4. Step 4: Simplify right side
   1,486.69x = 10,607,234.77
5. Step 5: Solve for x
   x = 10,607,234.77/1,486.69
6. Step 6: Final answer
   x = 7,134.81