Finding the Third Proportional to 584,866 and 1,215,680

Step by Step Solution

1. Step 1: Write the proportion equation
   584,866 : 1,215,680 = 1,215,680 : x
2. Step 2: Convert to fraction form
   584,866/1,215,680 = 1,215,680/x
3. Step 3: Cross multiply
   584,866x = 1,215,680 × 1,215,680
4. Step 4: Simplify right side
   584,866x = 1,477,877,862,400
5. Step 5: Solve for x
   x = 1,477,877,862,400/584,866
6. Step 6: Final answer
   x = 2,526,865.75