Finding the Third Proportional to 129,672 and 238,032

Step by Step Solution

1. Step 1: Write the proportion equation
   129,672 : 238,032 = 238,032 : x
2. Step 2: Convert to fraction form
   129,672/238,032 = 238,032/x
3. Step 3: Cross multiply
   129,672x = 238,032 × 238,032
4. Step 4: Simplify right side
   129,672x = 56,659,233,024
5. Step 5: Solve for x
   x = 56,659,233,024/129,672
6. Step 6: Final answer
   x = 436,942.69