Finding the Third Proportional to 746,708 and 1,638,568

Step by Step Solution

1. Step 1: Write the proportion equation
   746,708 : 1,638,568 = 1,638,568 : x
2. Step 2: Convert to fraction form
   746,708/1,638,568 = 1,638,568/x
3. Step 3: Cross multiply
   746,708x = 1,638,568 × 1,638,568
4. Step 4: Simplify right side
   746,708x = 2,684,905,090,624
5. Step 5: Solve for x
   x = 2,684,905,090,624/746,708
6. Step 6: Final answer
   x = 3,595,655.99