Finding the Third Proportional to 145,790 and 238,061

Step by Step Solution

1. Step 1: Write the proportion equation
   145,790 : 238,061 = 238,061 : x
2. Step 2: Convert to fraction form
   145,790/238,061 = 238,061/x
3. Step 3: Cross multiply
   145,790x = 238,061 × 238,061
4. Step 4: Simplify right side
   145,790x = 56,673,039,721
5. Step 5: Solve for x
   x = 56,673,039,721/145,790
6. Step 6: Final answer
   x = 388,730.64