Finding the Third Proportional to 118,347.50 and 254,738

Step by Step Solution

1. Step 1: Write the proportion equation
   118,347.50 : 254,738 = 254,738 : x
2. Step 2: Convert to fraction form
   118,347.50/254,738 = 254,738/x
3. Step 3: Cross multiply
   118,347.50x = 254,738 × 254,738
4. Step 4: Simplify right side
   118,347.50x = 64,891,448,644
5. Step 5: Solve for x
   x = 64,891,448,644/118,347.50
6. Step 6: Final answer
   x = 548,312.80