Finding the Third Proportional to 116,885 and 254,911

Step by Step Solution

1. Step 1: Write the proportion equation
   116,885 : 254,911 = 254,911 : x
2. Step 2: Convert to fraction form
   116,885/254,911 = 254,911/x
3. Step 3: Cross multiply
   116,885x = 254,911 × 254,911
4. Step 4: Simplify right side
   116,885x = 64,979,617,921
5. Step 5: Solve for x
   x = 64,979,617,921/116,885
6. Step 6: Final answer
   x = 555,927.77