Finding the Third Proportional to 1,272,780 and 2,744,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,780 : 2,744,716 = 2,744,716 : x
2. Step 2: Convert to fraction form
   1,272,780/2,744,716 = 2,744,716/x
3. Step 3: Cross multiply
   1,272,780x = 2,744,716 × 2,744,716
4. Step 4: Simplify right side
   1,272,780x = 7,533,465,920,656
5. Step 5: Solve for x
   x = 7,533,465,920,656/1,272,780
6. Step 6: Final answer
   x = 5,918,906.58