Finding the Third Proportional to 669,456 and 1,025,560

Step by Step Solution

1. Step 1: Write the proportion equation
   669,456 : 1,025,560 = 1,025,560 : x
2. Step 2: Convert to fraction form
   669,456/1,025,560 = 1,025,560/x
3. Step 3: Cross multiply
   669,456x = 1,025,560 × 1,025,560
4. Step 4: Simplify right side
   669,456x = 1,051,773,313,600
5. Step 5: Solve for x
   x = 1,051,773,313,600/669,456
6. Step 6: Final answer
   x = 1,571,086.54