Finding the Third Proportional to 584,859 and 1,215,685.50

Step by Step Solution

1. Step 1: Write the proportion equation
   584,859 : 1,215,685.50 = 1,215,685.50 : x
2. Step 2: Convert to fraction form
   584,859/1,215,685.50 = 1,215,685.50/x
3. Step 3: Cross multiply
   584,859x = 1,215,685.50 × 1,215,685.50
4. Step 4: Simplify right side
   584,859x = 1,477,891,234,910.25
5. Step 5: Solve for x
   x = 1,477,891,234,910.25/584,859
6. Step 6: Final answer
   x = 2,526,918.86