Finding the Third Proportional to 142,319 and 316,150

Step by Step Solution

1. Step 1: Write the proportion equation
   142,319 : 316,150 = 316,150 : x
2. Step 2: Convert to fraction form
   142,319/316,150 = 316,150/x
3. Step 3: Cross multiply
   142,319x = 316,150 × 316,150
4. Step 4: Simplify right side
   142,319x = 99,950,822,500
5. Step 5: Solve for x
   x = 99,950,822,500/142,319
6. Step 6: Final answer
   x = 702,301.33