Finding the Third Proportional to 791,842 and 1,728,878

Step by Step Solution

1. Step 1: Write the proportion equation
   791,842 : 1,728,878 = 1,728,878 : x
2. Step 2: Convert to fraction form
   791,842/1,728,878 = 1,728,878/x
3. Step 3: Cross multiply
   791,842x = 1,728,878 × 1,728,878
4. Step 4: Simplify right side
   791,842x = 2,989,019,138,884
5. Step 5: Solve for x
   x = 2,989,019,138,884/791,842
6. Step 6: Final answer
   x = 3,774,767.11