Finding the Third Proportional to 116,405 and 254,134

Step by Step Solution

1. Step 1: Write the proportion equation
   116,405 : 254,134 = 254,134 : x
2. Step 2: Convert to fraction form
   116,405/254,134 = 254,134/x
3. Step 3: Cross multiply
   116,405x = 254,134 × 254,134
4. Step 4: Simplify right side
   116,405x = 64,584,089,956
5. Step 5: Solve for x
   x = 64,584,089,956/116,405
6. Step 6: Final answer
   x = 554,822.30