Finding the Third Proportional to 642,982 and 1,374,540

Step by Step Solution

1. Step 1: Write the proportion equation
   642,982 : 1,374,540 = 1,374,540 : x
2. Step 2: Convert to fraction form
   642,982/1,374,540 = 1,374,540/x
3. Step 3: Cross multiply
   642,982x = 1,374,540 × 1,374,540
4. Step 4: Simplify right side
   642,982x = 1,889,360,211,600
5. Step 5: Solve for x
   x = 1,889,360,211,600/642,982
6. Step 6: Final answer
   x = 2,938,434.06