Finding the Third Proportional to 354,991 and 536,182.50

Step by Step Solution

1. Step 1: Write the proportion equation
   354,991 : 536,182.50 = 536,182.50 : x
2. Step 2: Convert to fraction form
   354,991/536,182.50 = 536,182.50/x
3. Step 3: Cross multiply
   354,991x = 536,182.50 × 536,182.50
4. Step 4: Simplify right side
   354,991x = 287,491,673,306.25
5. Step 5: Solve for x
   x = 287,491,673,306.25/354,991
6. Step 6: Final answer
   x = 809,856.23