Finding the Third Proportional to 191,336 and 417,116

Step by Step Solution

1. Step 1: Write the proportion equation
   191,336 : 417,116 = 417,116 : x
2. Step 2: Convert to fraction form
   191,336/417,116 = 417,116/x
3. Step 3: Cross multiply
   191,336x = 417,116 × 417,116
4. Step 4: Simplify right side
   191,336x = 173,985,757,456
5. Step 5: Solve for x
   x = 173,985,757,456/191,336
6. Step 6: Final answer
   x = 909,320.55