Finding the Third Proportional to 1,267,008 and 2,638,488

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,008 : 2,638,488 = 2,638,488 : x
2. Step 2: Convert to fraction form
   1,267,008/2,638,488 = 2,638,488/x
3. Step 3: Cross multiply
   1,267,008x = 2,638,488 × 2,638,488
4. Step 4: Simplify right side
   1,267,008x = 6,961,618,926,144
5. Step 5: Solve for x
   x = 6,961,618,926,144/1,267,008
6. Step 6: Final answer
   x = 5,494,534.31