Finding the Third Proportional to 1,260,536 and 2,698,260

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260,536 : 2,698,260 = 2,698,260 : x
2. Step 2: Convert to fraction form
   1,260,536/2,698,260 = 2,698,260/x
3. Step 3: Cross multiply
   1,260,536x = 2,698,260 × 2,698,260
4. Step 4: Simplify right side
   1,260,536x = 7,280,607,027,600
5. Step 5: Solve for x
   x = 7,280,607,027,600/1,260,536
6. Step 6: Final answer
   x = 5,775,802.54