Finding the Third Proportional to 117,887 and 254,608

Step by Step Solution

1. Step 1: Write the proportion equation
   117,887 : 254,608 = 254,608 : x
2. Step 2: Convert to fraction form
   117,887/254,608 = 254,608/x
3. Step 3: Cross multiply
   117,887x = 254,608 × 254,608
4. Step 4: Simplify right side
   117,887x = 64,825,233,664
5. Step 5: Solve for x
   x = 64,825,233,664/117,887
6. Step 6: Final answer
   x = 549,892.98