Finding the Third Proportional to 145,788 and 238,058

Step by Step Solution

1. Step 1: Write the proportion equation
   145,788 : 238,058 = 238,058 : x
2. Step 2: Convert to fraction form
   145,788/238,058 = 238,058/x
3. Step 3: Cross multiply
   145,788x = 238,058 × 238,058
4. Step 4: Simplify right side
   145,788x = 56,671,611,364
5. Step 5: Solve for x
   x = 56,671,611,364/145,788
6. Step 6: Final answer
   x = 388,726.17