Finding the Third Proportional to 117,156 and 255,514

Step by Step Solution

1. Step 1: Write the proportion equation
   117,156 : 255,514 = 255,514 : x
2. Step 2: Convert to fraction form
   117,156/255,514 = 255,514/x
3. Step 3: Cross multiply
   117,156x = 255,514 × 255,514
4. Step 4: Simplify right side
   117,156x = 65,287,404,196
5. Step 5: Solve for x
   x = 65,287,404,196/117,156
6. Step 6: Final answer
   x = 557,268.98