Finding the Third Proportional to 1,998,520 and 4,282,588

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998,520 : 4,282,588 = 4,282,588 : x
2. Step 2: Convert to fraction form
   1,998,520/4,282,588 = 4,282,588/x
3. Step 3: Cross multiply
   1,998,520x = 4,282,588 × 4,282,588
4. Step 4: Simplify right side
   1,998,520x = 18,340,559,977,744
5. Step 5: Solve for x
   x = 18,340,559,977,744/1,998,520
6. Step 6: Final answer
   x = 9,177,071.02