Finding the Third Proportional to 1,260,726 and 2,698,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260,726 : 2,698,620 = 2,698,620 : x
2. Step 2: Convert to fraction form
   1,260,726/2,698,620 = 2,698,620/x
3. Step 3: Cross multiply
   1,260,726x = 2,698,620 × 2,698,620
4. Step 4: Simplify right side
   1,260,726x = 7,282,549,904,400
5. Step 5: Solve for x
   x = 7,282,549,904,400/1,260,726
6. Step 6: Final answer
   x = 5,776,473.16