Finding the Third Proportional to 117,196 and 248,360

Step by Step Solution

1. Step 1: Write the proportion equation
   117,196 : 248,360 = 248,360 : x
2. Step 2: Convert to fraction form
   117,196/248,360 = 248,360/x
3. Step 3: Cross multiply
   117,196x = 248,360 × 248,360
4. Step 4: Simplify right side
   117,196x = 61,682,689,600
5. Step 5: Solve for x
   x = 61,682,689,600/117,196
6. Step 6: Final answer
   x = 526,320.78