Finding the Third Proportional to 647,172 and 1,013,009

Step by Step Solution

1. Step 1: Write the proportion equation
   647,172 : 1,013,009 = 1,013,009 : x
2. Step 2: Convert to fraction form
   647,172/1,013,009 = 1,013,009/x
3. Step 3: Cross multiply
   647,172x = 1,013,009 × 1,013,009
4. Step 4: Simplify right side
   647,172x = 1,026,187,234,081
5. Step 5: Solve for x
   x = 1,026,187,234,081/647,172
6. Step 6: Final answer
   x = 1,585,648.38