Finding the Third Proportional to 778,790 and 1,137,562

Step by Step Solution

1. Step 1: Write the proportion equation
   778,790 : 1,137,562 = 1,137,562 : x
2. Step 2: Convert to fraction form
   778,790/1,137,562 = 1,137,562/x
3. Step 3: Cross multiply
   778,790x = 1,137,562 × 1,137,562
4. Step 4: Simplify right side
   778,790x = 1,294,047,303,844
5. Step 5: Solve for x
   x = 1,294,047,303,844/778,790
6. Step 6: Final answer
   x = 1,661,612.63