Finding the Third Proportional to 268,745 and 388,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   268,745 : 388,483.50 = 388,483.50 : x
2. Step 2: Convert to fraction form
   268,745/388,483.50 = 388,483.50/x
3. Step 3: Cross multiply
   268,745x = 388,483.50 × 388,483.50
4. Step 4: Simplify right side
   268,745x = 150,919,429,772.25
5. Step 5: Solve for x
   x = 150,919,429,772.25/268,745
6. Step 6: Final answer
   x = 561,571.12