Finding the Third Proportional to 142,632 and 307,848

Step by Step Solution

1. Step 1: Write the proportion equation
   142,632 : 307,848 = 307,848 : x
2. Step 2: Convert to fraction form
   142,632/307,848 = 307,848/x
3. Step 3: Cross multiply
   142,632x = 307,848 × 307,848
4. Step 4: Simplify right side
   142,632x = 94,770,391,104
5. Step 5: Solve for x
   x = 94,770,391,104/142,632
6. Step 6: Final answer
   x = 664,439.90