Finding the Third Proportional to 118,078 and 254,814

Step by Step Solution

1. Step 1: Write the proportion equation
   118,078 : 254,814 = 254,814 : x
2. Step 2: Convert to fraction form
   118,078/254,814 = 254,814/x
3. Step 3: Cross multiply
   118,078x = 254,814 × 254,814
4. Step 4: Simplify right side
   118,078x = 64,930,174,596
5. Step 5: Solve for x
   x = 64,930,174,596/118,078
6. Step 6: Final answer
   x = 549,892.23