Finding the Third Proportional to 639,852 and 963,833.25

Step by Step Solution

1. Step 1: Write the proportion equation
   639,852 : 963,833.25 = 963,833.25 : x
2. Step 2: Convert to fraction form
   639,852/963,833.25 = 963,833.25/x
3. Step 3: Cross multiply
   639,852x = 963,833.25 × 963,833.25
4. Step 4: Simplify right side
   639,852x = 928,974,533,805.56
5. Step 5: Solve for x
   x = 928,974,533,805.56/639,852
6. Step 6: Final answer
   x = 1,451,858.45