Finding the Third Proportional to 799,164 and 1,218,690

Step by Step Solution

1. Step 1: Write the proportion equation
   799,164 : 1,218,690 = 1,218,690 : x
2. Step 2: Convert to fraction form
   799,164/1,218,690 = 1,218,690/x
3. Step 3: Cross multiply
   799,164x = 1,218,690 × 1,218,690
4. Step 4: Simplify right side
   799,164x = 1,485,205,316,100
5. Step 5: Solve for x
   x = 1,485,205,316,100/799,164
6. Step 6: Final answer
   x = 1,858,448.72