Finding the Third Proportional to 1,249,121 and 2,687,697

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,121 : 2,687,697 = 2,687,697 : x
2. Step 2: Convert to fraction form
   1,249,121/2,687,697 = 2,687,697/x
3. Step 3: Cross multiply
   1,249,121x = 2,687,697 × 2,687,697
4. Step 4: Simplify right side
   1,249,121x = 7,223,715,163,809
5. Step 5: Solve for x
   x = 7,223,715,163,809/1,249,121
6. Step 6: Final answer
   x = 5,783,038.76