Finding the Third Proportional to 191,519 and 289,944.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,519 : 289,944.50 = 289,944.50 : x
2. Step 2: Convert to fraction form
   191,519/289,944.50 = 289,944.50/x
3. Step 3: Cross multiply
   191,519x = 289,944.50 × 289,944.50
4. Step 4: Simplify right side
   191,519x = 84,067,813,080.25
5. Step 5: Solve for x
   x = 84,067,813,080.25/191,519
6. Step 6: Final answer
   x = 438,952.86