Finding the Third Proportional to 117,868 and 254,426

Step by Step Solution

1. Step 1: Write the proportion equation
   117,868 : 254,426 = 254,426 : x
2. Step 2: Convert to fraction form
   117,868/254,426 = 254,426/x
3. Step 3: Cross multiply
   117,868x = 254,426 × 254,426
4. Step 4: Simplify right side
   117,868x = 64,732,589,476
5. Step 5: Solve for x
   x = 64,732,589,476/117,868
6. Step 6: Final answer
   x = 549,195.62