Finding the Third Proportional to 228,186 and 354,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   228,186 : 354,724.50 = 354,724.50 : x
2. Step 2: Convert to fraction form
   228,186/354,724.50 = 354,724.50/x
3. Step 3: Cross multiply
   228,186x = 354,724.50 × 354,724.50
4. Step 4: Simplify right side
   228,186x = 125,829,470,900.25
5. Step 5: Solve for x
   x = 125,829,470,900.25/228,186
6. Step 6: Final answer
   x = 551,433.79