Finding the Third Proportional to 191,392 and 447,040

Step by Step Solution

1. Step 1: Write the proportion equation
   191,392 : 447,040 = 447,040 : x
2. Step 2: Convert to fraction form
   191,392/447,040 = 447,040/x
3. Step 3: Cross multiply
   191,392x = 447,040 × 447,040
4. Step 4: Simplify right side
   191,392x = 199,844,761,600
5. Step 5: Solve for x
   x = 199,844,761,600/191,392
6. Step 6: Final answer
   x = 1,044,164.65