Finding the Third Proportional to 1,240,190 and 1,860,267

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,190 : 1,860,267 = 1,860,267 : x
2. Step 2: Convert to fraction form
   1,240,190/1,860,267 = 1,860,267/x
3. Step 3: Cross multiply
   1,240,190x = 1,860,267 × 1,860,267
4. Step 4: Simplify right side
   1,240,190x = 3,460,593,311,289
5. Step 5: Solve for x
   x = 3,460,593,311,289/1,240,190
6. Step 6: Final answer
   x = 2,790,373.50