Finding the Third Proportional to 621,788 and 1,341,656

Step by Step Solution

1. Step 1: Write the proportion equation
   621,788 : 1,341,656 = 1,341,656 : x
2. Step 2: Convert to fraction form
   621,788/1,341,656 = 1,341,656/x
3. Step 3: Cross multiply
   621,788x = 1,341,656 × 1,341,656
4. Step 4: Simplify right side
   621,788x = 1,800,040,822,336
5. Step 5: Solve for x
   x = 1,800,040,822,336/621,788
6. Step 6: Final answer
   x = 2,894,943.01