Finding the Third Proportional to 862,200 and 1,878,816

Step by Step Solution

1. Step 1: Write the proportion equation
   862,200 : 1,878,816 = 1,878,816 : x
2. Step 2: Convert to fraction form
   862,200/1,878,816 = 1,878,816/x
3. Step 3: Cross multiply
   862,200x = 1,878,816 × 1,878,816
4. Step 4: Simplify right side
   862,200x = 3,529,949,561,856
5. Step 5: Solve for x
   x = 3,529,949,561,856/862,200
6. Step 6: Final answer
   x = 4,094,119.19