Finding the Third Proportional to 116,718 and 254,560

Step by Step Solution

1. Step 1: Write the proportion equation
   116,718 : 254,560 = 254,560 : x
2. Step 2: Convert to fraction form
   116,718/254,560 = 254,560/x
3. Step 3: Cross multiply
   116,718x = 254,560 × 254,560
4. Step 4: Simplify right side
   116,718x = 64,800,793,600
5. Step 5: Solve for x
   x = 64,800,793,600/116,718
6. Step 6: Final answer
   x = 555,191.09