Finding the Third Proportional to 647,476 and 1,320,632

Step by Step Solution

1. Step 1: Write the proportion equation
   647,476 : 1,320,632 = 1,320,632 : x
2. Step 2: Convert to fraction form
   647,476/1,320,632 = 1,320,632/x
3. Step 3: Cross multiply
   647,476x = 1,320,632 × 1,320,632
4. Step 4: Simplify right side
   647,476x = 1,744,068,879,424
5. Step 5: Solve for x
   x = 1,744,068,879,424/647,476
6. Step 6: Final answer
   x = 2,693,642.51