Finding the Third Proportional to 335,115 and 729,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   335,115 : 729,199.50 = 729,199.50 : x
2. Step 2: Convert to fraction form
   335,115/729,199.50 = 729,199.50/x
3. Step 3: Cross multiply
   335,115x = 729,199.50 × 729,199.50
4. Step 4: Simplify right side
   335,115x = 531,731,910,800.25
5. Step 5: Solve for x
   x = 531,731,910,800.25/335,115
6. Step 6: Final answer
   x = 1,586,714.74