Finding the Third Proportional to 590,868 and 886,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,868 : 886,078.50 = 886,078.50 : x
2. Step 2: Convert to fraction form
   590,868/886,078.50 = 886,078.50/x
3. Step 3: Cross multiply
   590,868x = 886,078.50 × 886,078.50
4. Step 4: Simplify right side
   590,868x = 785,135,108,162.25
5. Step 5: Solve for x
   x = 785,135,108,162.25/590,868
6. Step 6: Final answer
   x = 1,328,782.58