Finding the Third Proportional to 354,036.50 and 533,994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,036.50 : 533,994.50 = 533,994.50 : x
2. Step 2: Convert to fraction form
   354,036.50/533,994.50 = 533,994.50/x
3. Step 3: Cross multiply
   354,036.50x = 533,994.50 × 533,994.50
4. Step 4: Simplify right side
   354,036.50x = 285,150,126,030.25
5. Step 5: Solve for x
   x = 285,150,126,030.25/354,036.50
6. Step 6: Final answer
   x = 805,425.79