Finding the Third Proportional to 647,622 and 1,374,165

Step by Step Solution

1. Step 1: Write the proportion equation
   647,622 : 1,374,165 = 1,374,165 : x
2. Step 2: Convert to fraction form
   647,622/1,374,165 = 1,374,165/x
3. Step 3: Cross multiply
   647,622x = 1,374,165 × 1,374,165
4. Step 4: Simplify right side
   647,622x = 1,888,329,447,225
5. Step 5: Solve for x
   x = 1,888,329,447,225/647,622
6. Step 6: Final answer
   x = 2,915,789.53