Finding the Third Proportional to 261,832.50 and 400,357.69

Step by Step Solution

1. Step 1: Write the proportion equation
   261,832.50 : 400,357.69 = 400,357.69 : x
2. Step 2: Convert to fraction form
   261,832.50/400,357.69 = 400,357.69/x
3. Step 3: Cross multiply
   261,832.50x = 400,357.69 × 400,357.69
4. Step 4: Simplify right side
   261,832.50x = 160,286,277,940.35
5. Step 5: Solve for x
   x = 160,286,277,940.35/261,832.50
6. Step 6: Final answer
   x = 612,171.06