Finding the Third Proportional to 820,560 and 1,724,056

Step by Step Solution

1. Step 1: Write the proportion equation
   820,560 : 1,724,056 = 1,724,056 : x
2. Step 2: Convert to fraction form
   820,560/1,724,056 = 1,724,056/x
3. Step 3: Cross multiply
   820,560x = 1,724,056 × 1,724,056
4. Step 4: Simplify right side
   820,560x = 2,972,369,091,136
5. Step 5: Solve for x
   x = 2,972,369,091,136/820,560
6. Step 6: Final answer
   x = 3,622,366.54