Finding the Third Proportional to 190,390.50 and 414,936

Step by Step Solution

1. Step 1: Write the proportion equation
   190,390.50 : 414,936 = 414,936 : x
2. Step 2: Convert to fraction form
   190,390.50/414,936 = 414,936/x
3. Step 3: Cross multiply
   190,390.50x = 414,936 × 414,936
4. Step 4: Simplify right side
   190,390.50x = 172,171,884,096
5. Step 5: Solve for x
   x = 172,171,884,096/190,390.50
6. Step 6: Final answer
   x = 904,309.22