Finding the Third Proportional to 621,126 and 1,337,282

Step by Step Solution

1. Step 1: Write the proportion equation
   621,126 : 1,337,282 = 1,337,282 : x
2. Step 2: Convert to fraction form
   621,126/1,337,282 = 1,337,282/x
3. Step 3: Cross multiply
   621,126x = 1,337,282 × 1,337,282
4. Step 4: Simplify right side
   621,126x = 1,788,323,147,524
5. Step 5: Solve for x
   x = 1,788,323,147,524/621,126
6. Step 6: Final answer
   x = 2,879,163.24