Finding the Third Proportional to 178,346 and 391,052.75

Step by Step Solution

1. Step 1: Write the proportion equation
   178,346 : 391,052.75 = 391,052.75 : x
2. Step 2: Convert to fraction form
   178,346/391,052.75 = 391,052.75/x
3. Step 3: Cross multiply
   178,346x = 391,052.75 × 391,052.75
4. Step 4: Simplify right side
   178,346x = 152,922,253,282.56
5. Step 5: Solve for x
   x = 152,922,253,282.56/178,346
6. Step 6: Final answer
   x = 857,447.06