Finding the Third Proportional to 621,118 and 1,337,340

Step by Step Solution

1. Step 1: Write the proportion equation
   621,118 : 1,337,340 = 1,337,340 : x
2. Step 2: Convert to fraction form
   621,118/1,337,340 = 1,337,340/x
3. Step 3: Cross multiply
   621,118x = 1,337,340 × 1,337,340
4. Step 4: Simplify right side
   621,118x = 1,788,478,275,600
5. Step 5: Solve for x
   x = 1,788,478,275,600/621,118
6. Step 6: Final answer
   x = 2,879,450.08