Finding the Third Proportional to 164,673 and 336,514.50

Step by Step Solution

1. Step 1: Write the proportion equation
   164,673 : 336,514.50 = 336,514.50 : x
2. Step 2: Convert to fraction form
   164,673/336,514.50 = 336,514.50/x
3. Step 3: Cross multiply
   164,673x = 336,514.50 × 336,514.50
4. Step 4: Simplify right side
   164,673x = 113,242,008,710.25
5. Step 5: Solve for x
   x = 113,242,008,710.25/164,673
6. Step 6: Final answer
   x = 687,678.06