Finding the Third Proportional to 328,699.69 and 493,048.69

Step by Step Solution

1. Step 1: Write the proportion equation
   328,699.69 : 493,048.69 = 493,048.69 : x
2. Step 2: Convert to fraction form
   328,699.69/493,048.69 = 493,048.69/x
3. Step 3: Cross multiply
   328,699.69x = 493,048.69 × 493,048.69
4. Step 4: Simplify right side
   328,699.69x = 243,097,008,245.47
5. Step 5: Solve for x
   x = 243,097,008,245.47/328,699.69
6. Step 6: Final answer
   x = 739,571.77