Finding the Third Proportional to 191,240 and 280,092

Step by Step Solution

1. Step 1: Write the proportion equation
   191,240 : 280,092 = 280,092 : x
2. Step 2: Convert to fraction form
   191,240/280,092 = 280,092/x
3. Step 3: Cross multiply
   191,240x = 280,092 × 280,092
4. Step 4: Simplify right side
   191,240x = 78,451,528,464
5. Step 5: Solve for x
   x = 78,451,528,464/191,240
6. Step 6: Final answer
   x = 410,225.52