Finding the Third Proportional to 450,363 and 989,299.50

Step by Step Solution

1. Step 1: Write the proportion equation
   450,363 : 989,299.50 = 989,299.50 : x
2. Step 2: Convert to fraction form
   450,363/989,299.50 = 989,299.50/x
3. Step 3: Cross multiply
   450,363x = 989,299.50 × 989,299.50
4. Step 4: Simplify right side
   450,363x = 978,713,500,700.25
5. Step 5: Solve for x
   x = 978,713,500,700.25/450,363
6. Step 6: Final answer
   x = 2,173,165.87