Finding the Third Proportional to 678,409 and 996,877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   678,409 : 996,877.50 = 996,877.50 : x
2. Step 2: Convert to fraction form
   678,409/996,877.50 = 996,877.50/x
3. Step 3: Cross multiply
   678,409x = 996,877.50 × 996,877.50
4. Step 4: Simplify right side
   678,409x = 993,764,750,006.25
5. Step 5: Solve for x
   x = 993,764,750,006.25/678,409
6. Step 6: Final answer
   x = 1,464,846.06