Finding the Third Proportional to 216,168 and 345,333

Step by Step Solution

1. Step 1: Write the proportion equation
   216,168 : 345,333 = 345,333 : x
2. Step 2: Convert to fraction form
   216,168/345,333 = 345,333/x
3. Step 3: Cross multiply
   216,168x = 345,333 × 345,333
4. Step 4: Simplify right side
   216,168x = 119,254,880,889
5. Step 5: Solve for x
   x = 119,254,880,889/216,168
6. Step 6: Final answer
   x = 551,676.85