Finding the Third Proportional to 228,215.25 and 354,762

Step by Step Solution

1. Step 1: Write the proportion equation
   228,215.25 : 354,762 = 354,762 : x
2. Step 2: Convert to fraction form
   228,215.25/354,762 = 354,762/x
3. Step 3: Cross multiply
   228,215.25x = 354,762 × 354,762
4. Step 4: Simplify right side
   228,215.25x = 125,856,076,644
5. Step 5: Solve for x
   x = 125,856,076,644/228,215.25
6. Step 6: Final answer
   x = 551,479.70