Finding the Third Proportional to 190,592 and 280,182

Step by Step Solution

1. Step 1: Write the proportion equation
   190,592 : 280,182 = 280,182 : x
2. Step 2: Convert to fraction form
   190,592/280,182 = 280,182/x
3. Step 3: Cross multiply
   190,592x = 280,182 × 280,182
4. Step 4: Simplify right side
   190,592x = 78,501,953,124
5. Step 5: Solve for x
   x = 78,501,953,124/190,592
6. Step 6: Final answer
   x = 411,884.83