Finding the Third Proportional to 6,458.50 and 8,714.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,458.50 : 8,714.50 = 8,714.50 : x
2. Step 2: Convert to fraction form
   6,458.50/8,714.50 = 8,714.50/x
3. Step 3: Cross multiply
   6,458.50x = 8,714.50 × 8,714.50
4. Step 4: Simplify right side
   6,458.50x = 75,942,510.25
5. Step 5: Solve for x
   x = 75,942,510.25/6,458.50
6. Step 6: Final answer
   x = 11,758.54