Finding the Third Proportional to 116,679 and 254,476

Step by Step Solution

1. Step 1: Write the proportion equation
   116,679 : 254,476 = 254,476 : x
2. Step 2: Convert to fraction form
   116,679/254,476 = 254,476/x
3. Step 3: Cross multiply
   116,679x = 254,476 × 254,476
4. Step 4: Simplify right side
   116,679x = 64,758,034,576
5. Step 5: Solve for x
   x = 64,758,034,576/116,679
6. Step 6: Final answer
   x = 555,010.20