Finding the Third Proportional to 1,263,976 and 1,788,487

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263,976 : 1,788,487 = 1,788,487 : x
2. Step 2: Convert to fraction form
   1,263,976/1,788,487 = 1,788,487/x
3. Step 3: Cross multiply
   1,263,976x = 1,788,487 × 1,788,487
4. Step 4: Simplify right side
   1,263,976x = 3,198,685,749,169
5. Step 5: Solve for x
   x = 3,198,685,749,169/1,263,976
6. Step 6: Final answer
   x = 2,530,653.86