Finding the Third Proportional to 68,858 and 150,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,858 : 150,819.50 = 150,819.50 : x
2. Step 2: Convert to fraction form
   68,858/150,819.50 = 150,819.50/x
3. Step 3: Cross multiply
   68,858x = 150,819.50 × 150,819.50
4. Step 4: Simplify right side
   68,858x = 22,746,521,580.25
5. Step 5: Solve for x
   x = 22,746,521,580.25/68,858
6. Step 6: Final answer
   x = 330,339.56