Finding the Third Proportional to 191,733 and 408,054

Step by Step Solution

1. Step 1: Write the proportion equation
   191,733 : 408,054 = 408,054 : x
2. Step 2: Convert to fraction form
   191,733/408,054 = 408,054/x
3. Step 3: Cross multiply
   191,733x = 408,054 × 408,054
4. Step 4: Simplify right side
   191,733x = 166,508,066,916
5. Step 5: Solve for x
   x = 166,508,066,916/191,733
6. Step 6: Final answer
   x = 868,437.19