Finding the Third Proportional to 268,069.50 and 400,788

Step by Step Solution

1. Step 1: Write the proportion equation
   268,069.50 : 400,788 = 400,788 : x
2. Step 2: Convert to fraction form
   268,069.50/400,788 = 400,788/x
3. Step 3: Cross multiply
   268,069.50x = 400,788 × 400,788
4. Step 4: Simplify right side
   268,069.50x = 160,631,020,944
5. Step 5: Solve for x
   x = 160,631,020,944/268,069.50
6. Step 6: Final answer
   x = 599,214.09