Finding the Third Proportional to 647,200 and 1,346,048

Step by Step Solution

1. Step 1: Write the proportion equation
   647,200 : 1,346,048 = 1,346,048 : x
2. Step 2: Convert to fraction form
   647,200/1,346,048 = 1,346,048/x
3. Step 3: Cross multiply
   647,200x = 1,346,048 × 1,346,048
4. Step 4: Simplify right side
   647,200x = 1,811,845,218,304
5. Step 5: Solve for x
   x = 1,811,845,218,304/647,200
6. Step 6: Final answer
   x = 2,799,513.63