Finding the Third Proportional to 1,240,192 and 1,860,270

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,192 : 1,860,270 = 1,860,270 : x
2. Step 2: Convert to fraction form
   1,240,192/1,860,270 = 1,860,270/x
3. Step 3: Cross multiply
   1,240,192x = 1,860,270 × 1,860,270
4. Step 4: Simplify right side
   1,240,192x = 3,460,604,472,900
5. Step 5: Solve for x
   x = 3,460,604,472,900/1,240,192
6. Step 6: Final answer
   x = 2,790,378.00