Finding the Third Proportional to 117,118 and 253,904

Step by Step Solution

1. Step 1: Write the proportion equation
   117,118 : 253,904 = 253,904 : x
2. Step 2: Convert to fraction form
   117,118/253,904 = 253,904/x
3. Step 3: Cross multiply
   117,118x = 253,904 × 253,904
4. Step 4: Simplify right side
   117,118x = 64,467,241,216
5. Step 5: Solve for x
   x = 64,467,241,216/117,118
6. Step 6: Final answer
   x = 550,446.91