Finding the Third Proportional to 191,112 and 409,008

Step by Step Solution

1. Step 1: Write the proportion equation
   191,112 : 409,008 = 409,008 : x
2. Step 2: Convert to fraction form
   191,112/409,008 = 409,008/x
3. Step 3: Cross multiply
   191,112x = 409,008 × 409,008
4. Step 4: Simplify right side
   191,112x = 167,287,544,064
5. Step 5: Solve for x
   x = 167,287,544,064/191,112
6. Step 6: Final answer
   x = 875,337.73