Finding the Third Proportional to 579,478.50 and 886,446

Step by Step Solution

1. Step 1: Write the proportion equation
   579,478.50 : 886,446 = 886,446 : x
2. Step 2: Convert to fraction form
   579,478.50/886,446 = 886,446/x
3. Step 3: Cross multiply
   579,478.50x = 886,446 × 886,446
4. Step 4: Simplify right side
   579,478.50x = 785,786,510,916
5. Step 5: Solve for x
   x = 785,786,510,916/579,478.50
6. Step 6: Final answer
   x = 1,356,023.58