Finding the Third Proportional to 642,146 and 1,017,651

Step by Step Solution

1. Step 1: Write the proportion equation
   642,146 : 1,017,651 = 1,017,651 : x
2. Step 2: Convert to fraction form
   642,146/1,017,651 = 1,017,651/x
3. Step 3: Cross multiply
   642,146x = 1,017,651 × 1,017,651
4. Step 4: Simplify right side
   642,146x = 1,035,613,557,801
5. Step 5: Solve for x
   x = 1,035,613,557,801/642,146
6. Step 6: Final answer
   x = 1,612,738.47