Finding the Third Proportional to 191,846 and 391,308

Step by Step Solution

1. Step 1: Write the proportion equation
   191,846 : 391,308 = 391,308 : x
2. Step 2: Convert to fraction form
   191,846/391,308 = 391,308/x
3. Step 3: Cross multiply
   191,846x = 391,308 × 391,308
4. Step 4: Simplify right side
   191,846x = 153,121,950,864
5. Step 5: Solve for x
   x = 153,121,950,864/191,846
6. Step 6: Final answer
   x = 798,150.34