Finding the Third Proportional to 1,858,190 and 4,020,508

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858,190 : 4,020,508 = 4,020,508 : x
2. Step 2: Convert to fraction form
   1,858,190/4,020,508 = 4,020,508/x
3. Step 3: Cross multiply
   1,858,190x = 4,020,508 × 4,020,508
4. Step 4: Simplify right side
   1,858,190x = 16,164,484,578,064
5. Step 5: Solve for x
   x = 16,164,484,578,064/1,858,190
6. Step 6: Final answer
   x = 8,699,048.31