Finding the Third Proportional to 1,277,242 and 2,128,651

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277,242 : 2,128,651 = 2,128,651 : x
2. Step 2: Convert to fraction form
   1,277,242/2,128,651 = 2,128,651/x
3. Step 3: Cross multiply
   1,277,242x = 2,128,651 × 2,128,651
4. Step 4: Simplify right side
   1,277,242x = 4,531,155,079,801
5. Step 5: Solve for x
   x = 4,531,155,079,801/1,277,242
6. Step 6: Final answer
   x = 3,547,608.89