Finding the Third Proportional to 250,137 and 393,025.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,137 : 393,025.50 = 393,025.50 : x
2. Step 2: Convert to fraction form
   250,137/393,025.50 = 393,025.50/x
3. Step 3: Cross multiply
   250,137x = 393,025.50 × 393,025.50
4. Step 4: Simplify right side
   250,137x = 154,469,043,650.25
5. Step 5: Solve for x
   x = 154,469,043,650.25/250,137
6. Step 6: Final answer
   x = 617,537.76