Finding the Third Proportional to 786,936 and 1,688,568

Step by Step Solution

1. Step 1: Write the proportion equation
   786,936 : 1,688,568 = 1,688,568 : x
2. Step 2: Convert to fraction form
   786,936/1,688,568 = 1,688,568/x
3. Step 3: Cross multiply
   786,936x = 1,688,568 × 1,688,568
4. Step 4: Simplify right side
   786,936x = 2,851,261,890,624
5. Step 5: Solve for x
   x = 2,851,261,890,624/786,936
6. Step 6: Final answer
   x = 3,623,244.95