Finding the Third Proportional to 859,421 and 1,872,904

Step by Step Solution

1. Step 1: Write the proportion equation
   859,421 : 1,872,904 = 1,872,904 : x
2. Step 2: Convert to fraction form
   859,421/1,872,904 = 1,872,904/x
3. Step 3: Cross multiply
   859,421x = 1,872,904 × 1,872,904
4. Step 4: Simplify right side
   859,421x = 3,507,769,393,216
5. Step 5: Solve for x
   x = 3,507,769,393,216/859,421
6. Step 6: Final answer
   x = 4,081,549.55