Finding the Third Proportional to 678,835.69 and 1,487,296.69

Step by Step Solution

1. Step 1: Write the proportion equation
   678,835.69 : 1,487,296.69 = 1,487,296.69 : x
2. Step 2: Convert to fraction form
   678,835.69/1,487,296.69 = 1,487,296.69/x
3. Step 3: Cross multiply
   678,835.69x = 1,487,296.69 × 1,487,296.69
4. Step 4: Simplify right side
   678,835.69x = 2,212,051,436,648.47
5. Step 5: Solve for x
   x = 2,212,051,436,648.47/678,835.69
6. Step 6: Final answer
   x = 3,258,596.27