Finding the Third Proportional to 142,436 and 307,714

Step by Step Solution

1. Step 1: Write the proportion equation
   142,436 : 307,714 = 307,714 : x
2. Step 2: Convert to fraction form
   142,436/307,714 = 307,714/x
3. Step 3: Cross multiply
   142,436x = 307,714 × 307,714
4. Step 4: Simplify right side
   142,436x = 94,687,905,796
5. Step 5: Solve for x
   x = 94,687,905,796/142,436
6. Step 6: Final answer
   x = 664,775.10