Finding the Third Proportional to 647,286 and 1,005,009

Step by Step Solution

1. Step 1: Write the proportion equation
   647,286 : 1,005,009 = 1,005,009 : x
2. Step 2: Convert to fraction form
   647,286/1,005,009 = 1,005,009/x
3. Step 3: Cross multiply
   647,286x = 1,005,009 × 1,005,009
4. Step 4: Simplify right side
   647,286x = 1,010,043,090,081
5. Step 5: Solve for x
   x = 1,010,043,090,081/647,286
6. Step 6: Final answer
   x = 1,560,427.83