Finding the Third Proportional to 445,063.50 and 845,293.50

Step by Step Solution

1. Step 1: Write the proportion equation
   445,063.50 : 845,293.50 = 845,293.50 : x
2. Step 2: Convert to fraction form
   445,063.50/845,293.50 = 845,293.50/x
3. Step 3: Cross multiply
   445,063.50x = 845,293.50 × 845,293.50
4. Step 4: Simplify right side
   445,063.50x = 714,521,101,142.25
5. Step 5: Solve for x
   x = 714,521,101,142.25/445,063.50
6. Step 6: Final answer
   x = 1,605,436.31