Finding the Third Proportional to 142,907 and 301,853

Step by Step Solution

1. Step 1: Write the proportion equation
   142,907 : 301,853 = 301,853 : x
2. Step 2: Convert to fraction form
   142,907/301,853 = 301,853/x
3. Step 3: Cross multiply
   142,907x = 301,853 × 301,853
4. Step 4: Simplify right side
   142,907x = 91,115,233,609
5. Step 5: Solve for x
   x = 91,115,233,609/142,907
6. Step 6: Final answer
   x = 637,584.12