Finding the Third Proportional to 238,148 and 328,061

Step by Step Solution

1. Step 1: Write the proportion equation
   238,148 : 328,061 = 328,061 : x
2. Step 2: Convert to fraction form
   238,148/328,061 = 328,061/x
3. Step 3: Cross multiply
   238,148x = 328,061 × 328,061
4. Step 4: Simplify right side
   238,148x = 107,624,019,721
5. Step 5: Solve for x
   x = 107,624,019,721/238,148
6. Step 6: Final answer
   x = 451,920.74