Finding the Third Proportional to 112,718 and 238,009

Step by Step Solution

1. Step 1: Write the proportion equation
   112,718 : 238,009 = 238,009 : x
2. Step 2: Convert to fraction form
   112,718/238,009 = 238,009/x
3. Step 3: Cross multiply
   112,718x = 238,009 × 238,009
4. Step 4: Simplify right side
   112,718x = 56,648,284,081
5. Step 5: Solve for x
   x = 56,648,284,081/112,718
6. Step 6: Final answer
   x = 502,566.44