Finding the Third Proportional to 191,284 and 391,016

Step by Step Solution

1. Step 1: Write the proportion equation
   191,284 : 391,016 = 391,016 : x
2. Step 2: Convert to fraction form
   191,284/391,016 = 391,016/x
3. Step 3: Cross multiply
   191,284x = 391,016 × 391,016
4. Step 4: Simplify right side
   191,284x = 152,893,512,256
5. Step 5: Solve for x
   x = 152,893,512,256/191,284
6. Step 6: Final answer
   x = 799,301.10