Finding the Third Proportional to 1,249,881 and 2,686,212

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,881 : 2,686,212 = 2,686,212 : x
2. Step 2: Convert to fraction form
   1,249,881/2,686,212 = 2,686,212/x
3. Step 3: Cross multiply
   1,249,881x = 2,686,212 × 2,686,212
4. Step 4: Simplify right side
   1,249,881x = 7,215,734,908,944
5. Step 5: Solve for x
   x = 7,215,734,908,944/1,249,881
6. Step 6: Final answer
   x = 5,773,137.53