Finding the Third Proportional to 335,859 and 503,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   335,859 : 503,581.50 = 503,581.50 : x
2. Step 2: Convert to fraction form
   335,859/503,581.50 = 503,581.50/x
3. Step 3: Cross multiply
   335,859x = 503,581.50 × 503,581.50
4. Step 4: Simplify right side
   335,859x = 253,594,327,142.25
5. Step 5: Solve for x
   x = 253,594,327,142.25/335,859
6. Step 6: Final answer
   x = 755,061.88