Finding the Third Proportional to 164,306 and 345,196

Step by Step Solution

1. Step 1: Write the proportion equation
   164,306 : 345,196 = 345,196 : x
2. Step 2: Convert to fraction form
   164,306/345,196 = 345,196/x
3. Step 3: Cross multiply
   164,306x = 345,196 × 345,196
4. Step 4: Simplify right side
   164,306x = 119,160,278,416
5. Step 5: Solve for x
   x = 119,160,278,416/164,306
6. Step 6: Final answer
   x = 725,233.88