Finding the Third Proportional to 680,384 and 1,426,378

Step by Step Solution

1. Step 1: Write the proportion equation
   680,384 : 1,426,378 = 1,426,378 : x
2. Step 2: Convert to fraction form
   680,384/1,426,378 = 1,426,378/x
3. Step 3: Cross multiply
   680,384x = 1,426,378 × 1,426,378
4. Step 4: Simplify right side
   680,384x = 2,034,554,198,884
5. Step 5: Solve for x
   x = 2,034,554,198,884/680,384
6. Step 6: Final answer
   x = 2,990,302.83