Finding the Third Proportional to 1,272,186 and 2,720,871

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,186 : 2,720,871 = 2,720,871 : x
2. Step 2: Convert to fraction form
   1,272,186/2,720,871 = 2,720,871/x
3. Step 3: Cross multiply
   1,272,186x = 2,720,871 × 2,720,871
4. Step 4: Simplify right side
   1,272,186x = 7,403,138,998,641
5. Step 5: Solve for x
   x = 7,403,138,998,641/1,272,186
6. Step 6: Final answer
   x = 5,819,226.90