Finding the Third Proportional to 142,314.75 and 214,405.88

Step by Step Solution

1. Step 1: Write the proportion equation
   142,314.75 : 214,405.88 = 214,405.88 : x
2. Step 2: Convert to fraction form
   142,314.75/214,405.88 = 214,405.88/x
3. Step 3: Cross multiply
   142,314.75x = 214,405.88 × 214,405.88
4. Step 4: Simplify right side
   142,314.75x = 45,969,879,234.52
5. Step 5: Solve for x
   x = 45,969,879,234.52/142,314.75
6. Step 6: Final answer
   x = 323,015.56