Finding the Third Proportional to 140,458 and 228,188

Step by Step Solution

1. Step 1: Write the proportion equation
   140,458 : 228,188 = 228,188 : x
2. Step 2: Convert to fraction form
   140,458/228,188 = 228,188/x
3. Step 3: Cross multiply
   140,458x = 228,188 × 228,188
4. Step 4: Simplify right side
   140,458x = 52,069,763,344
5. Step 5: Solve for x
   x = 52,069,763,344/140,458
6. Step 6: Final answer
   x = 370,714.12