Finding the Third Proportional to 117,722 and 254,398

Step by Step Solution

1. Step 1: Write the proportion equation
   117,722 : 254,398 = 254,398 : x
2. Step 2: Convert to fraction form
   117,722/254,398 = 254,398/x
3. Step 3: Cross multiply
   117,722x = 254,398 × 254,398
4. Step 4: Simplify right side
   117,722x = 64,718,342,404
5. Step 5: Solve for x
   x = 64,718,342,404/117,722
6. Step 6: Final answer
   x = 549,755.72