Finding the Third Proportional to 1,684,430 and 2,591,702

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684,430 : 2,591,702 = 2,591,702 : x
2. Step 2: Convert to fraction form
   1,684,430/2,591,702 = 2,591,702/x
3. Step 3: Cross multiply
   1,684,430x = 2,591,702 × 2,591,702
4. Step 4: Simplify right side
   1,684,430x = 6,716,919,256,804
5. Step 5: Solve for x
   x = 6,716,919,256,804/1,684,430
6. Step 6: Final answer
   x = 3,987,651.17