Finding the Third Proportional to 188,061 and 391,674

Step by Step Solution

1. Step 1: Write the proportion equation
   188,061 : 391,674 = 391,674 : x
2. Step 2: Convert to fraction form
   188,061/391,674 = 391,674/x
3. Step 3: Cross multiply
   188,061x = 391,674 × 391,674
4. Step 4: Simplify right side
   188,061x = 153,408,522,276
5. Step 5: Solve for x
   x = 153,408,522,276/188,061
6. Step 6: Final answer
   x = 815,738.10