Finding the Third Proportional to 142,059 and 215,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,059 : 215,680.50 = 215,680.50 : x
2. Step 2: Convert to fraction form
   142,059/215,680.50 = 215,680.50/x
3. Step 3: Cross multiply
   142,059x = 215,680.50 × 215,680.50
4. Step 4: Simplify right side
   142,059x = 46,518,078,080.25
5. Step 5: Solve for x
   x = 46,518,078,080.25/142,059
6. Step 6: Final answer
   x = 327,456.04