Finding the Third Proportional to 211,475.50 and 323,910

Step by Step Solution

1. Step 1: Write the proportion equation
   211,475.50 : 323,910 = 323,910 : x
2. Step 2: Convert to fraction form
   211,475.50/323,910 = 323,910/x
3. Step 3: Cross multiply
   211,475.50x = 323,910 × 323,910
4. Step 4: Simplify right side
   211,475.50x = 104,917,688,100
5. Step 5: Solve for x
   x = 104,917,688,100/211,475.50
6. Step 6: Final answer
   x = 496,122.19