Finding the Third Proportional to 1,684,426 and 2,591,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684,426 : 2,591,698 = 2,591,698 : x
2. Step 2: Convert to fraction form
   1,684,426/2,591,698 = 2,591,698/x
3. Step 3: Cross multiply
   1,684,426x = 2,591,698 × 2,591,698
4. Step 4: Simplify right side
   1,684,426x = 6,716,898,523,204
5. Step 5: Solve for x
   x = 6,716,898,523,204/1,684,426
6. Step 6: Final answer
   x = 3,987,648.33