Finding the Third Proportional to 152,172 and 238,707

Step by Step Solution

1. Step 1: Write the proportion equation
   152,172 : 238,707 = 238,707 : x
2. Step 2: Convert to fraction form
   152,172/238,707 = 238,707/x
3. Step 3: Cross multiply
   152,172x = 238,707 × 238,707
4. Step 4: Simplify right side
   152,172x = 56,981,031,849
5. Step 5: Solve for x
   x = 56,981,031,849/152,172
6. Step 6: Final answer
   x = 374,451.49