Finding the Third Proportional to 857,730 and 1,864,860

Step by Step Solution

1. Step 1: Write the proportion equation
   857,730 : 1,864,860 = 1,864,860 : x
2. Step 2: Convert to fraction form
   857,730/1,864,860 = 1,864,860/x
3. Step 3: Cross multiply
   857,730x = 1,864,860 × 1,864,860
4. Step 4: Simplify right side
   857,730x = 3,477,702,819,600
5. Step 5: Solve for x
   x = 3,477,702,819,600/857,730
6. Step 6: Final answer
   x = 4,054,542.59