Finding the Third Proportional to 142,059 and 301,636.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,059 : 301,636.50 = 301,636.50 : x
2. Step 2: Convert to fraction form
   142,059/301,636.50 = 301,636.50/x
3. Step 3: Cross multiply
   142,059x = 301,636.50 × 301,636.50
4. Step 4: Simplify right side
   142,059x = 90,984,578,132.25
5. Step 5: Solve for x
   x = 90,984,578,132.25/142,059
6. Step 6: Final answer
   x = 640,470.35