Finding the Third Proportional to 335,518.50 and 508,164

Step by Step Solution

1. Step 1: Write the proportion equation
   335,518.50 : 508,164 = 508,164 : x
2. Step 2: Convert to fraction form
   335,518.50/508,164 = 508,164/x
3. Step 3: Cross multiply
   335,518.50x = 508,164 × 508,164
4. Step 4: Simplify right side
   335,518.50x = 258,230,650,896
5. Step 5: Solve for x
   x = 258,230,650,896/335,518.50
6. Step 6: Final answer
   x = 769,646.53