Finding the Third Proportional to 621,122 and 1,337,274

Step by Step Solution

1. Step 1: Write the proportion equation
   621,122 : 1,337,274 = 1,337,274 : x
2. Step 2: Convert to fraction form
   621,122/1,337,274 = 1,337,274/x
3. Step 3: Cross multiply
   621,122x = 1,337,274 × 1,337,274
4. Step 4: Simplify right side
   621,122x = 1,788,301,751,076
5. Step 5: Solve for x
   x = 1,788,301,751,076/621,122
6. Step 6: Final answer
   x = 2,879,147.34