Finding the Third Proportional to 1,236,294 and 2,607,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,236,294 : 2,607,642 = 2,607,642 : x
2. Step 2: Convert to fraction form
   1,236,294/2,607,642 = 2,607,642/x
3. Step 3: Cross multiply
   1,236,294x = 2,607,642 × 2,607,642
4. Step 4: Simplify right side
   1,236,294x = 6,799,796,800,164
5. Step 5: Solve for x
   x = 6,799,796,800,164/1,236,294
6. Step 6: Final answer
   x = 5,500,145.43