Finding the Third Proportional to 354,704.50 and 778,392

Step by Step Solution

1. Step 1: Write the proportion equation
   354,704.50 : 778,392 = 778,392 : x
2. Step 2: Convert to fraction form
   354,704.50/778,392 = 778,392/x
3. Step 3: Cross multiply
   354,704.50x = 778,392 × 778,392
4. Step 4: Simplify right side
   354,704.50x = 605,894,105,664
5. Step 5: Solve for x
   x = 605,894,105,664/354,704.50
6. Step 6: Final answer
   x = 1,708,165.83