Finding the Third Proportional to 878,722 and 1,917,822

Step by Step Solution

1. Step 1: Write the proportion equation
   878,722 : 1,917,822 = 1,917,822 : x
2. Step 2: Convert to fraction form
   878,722/1,917,822 = 1,917,822/x
3. Step 3: Cross multiply
   878,722x = 1,917,822 × 1,917,822
4. Step 4: Simplify right side
   878,722x = 3,678,041,223,684
5. Step 5: Solve for x
   x = 3,678,041,223,684/878,722
6. Step 6: Final answer
   x = 4,185,671.04