Finding the Third Proportional to 1,860,284 and 2,790,399

Step by Step Solution

1. Step 1: Write the proportion equation
   1,860,284 : 2,790,399 = 2,790,399 : x
2. Step 2: Convert to fraction form
   1,860,284/2,790,399 = 2,790,399/x
3. Step 3: Cross multiply
   1,860,284x = 2,790,399 × 2,790,399
4. Step 4: Simplify right side
   1,860,284x = 7,786,326,579,201
5. Step 5: Solve for x
   x = 7,786,326,579,201/1,860,284
6. Step 6: Final answer
   x = 4,185,558.00