Finding the Third Proportional to 645,476 and 1,364,827

Step by Step Solution

1. Step 1: Write the proportion equation
   645,476 : 1,364,827 = 1,364,827 : x
2. Step 2: Convert to fraction form
   645,476/1,364,827 = 1,364,827/x
3. Step 3: Cross multiply
   645,476x = 1,364,827 × 1,364,827
4. Step 4: Simplify right side
   645,476x = 1,862,752,739,929
5. Step 5: Solve for x
   x = 1,862,752,739,929/645,476
6. Step 6: Final answer
   x = 2,885,859.02