Finding the Third Proportional to 228,168 and 354,697.50

Step by Step Solution

1. Step 1: Write the proportion equation
   228,168 : 354,697.50 = 354,697.50 : x
2. Step 2: Convert to fraction form
   228,168/354,697.50 = 354,697.50/x
3. Step 3: Cross multiply
   228,168x = 354,697.50 × 354,697.50
4. Step 4: Simplify right side
   228,168x = 125,810,316,506.25
5. Step 5: Solve for x
   x = 125,810,316,506.25/228,168
6. Step 6: Final answer
   x = 551,393.34