Finding the Third Proportional to 718,573 and 1,569,390

Step by Step Solution

1. Step 1: Write the proportion equation
   718,573 : 1,569,390 = 1,569,390 : x
2. Step 2: Convert to fraction form
   718,573/1,569,390 = 1,569,390/x
3. Step 3: Cross multiply
   718,573x = 1,569,390 × 1,569,390
4. Step 4: Simplify right side
   718,573x = 2,462,984,972,100
5. Step 5: Solve for x
   x = 2,462,984,972,100/718,573
6. Step 6: Final answer
   x = 3,427,605.79