Finding the Third Proportional to 1,858,186 and 4,020,500

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,186 : 4,020,500 = 4,020,500 : x
2. Step 2: Convert to fraction form
   1,858,186/4,020,500 = 4,020,500/x
3. Step 3: Cross multiply
   1,858,186x = 4,020,500 × 4,020,500
4. Step 4: Simplify right side
   1,858,186x = 16,164,420,250,000
5. Step 5: Solve for x
   x = 16,164,420,250,000/1,858,186
6. Step 6: Final answer
   x = 8,699,032.42