Finding the Third Proportional to 1,748,488 and 2,638,796

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748,488 : 2,638,796 = 2,638,796 : x
2. Step 2: Convert to fraction form
   1,748,488/2,638,796 = 2,638,796/x
3. Step 3: Cross multiply
   1,748,488x = 2,638,796 × 2,638,796
4. Step 4: Simplify right side
   1,748,488x = 6,963,244,329,616
5. Step 5: Solve for x
   x = 6,963,244,329,616/1,748,488
6. Step 6: Final answer
   x = 3,982,437.59