Finding the Third Proportional to 2,145,792 and 3,987,264

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,792 : 3,987,264 = 3,987,264 : x
2. Step 2: Convert to fraction form
   2,145,792/3,987,264 = 3,987,264/x
3. Step 3: Cross multiply
   2,145,792x = 3,987,264 × 3,987,264
4. Step 4: Simplify right side
   2,145,792x = 15,898,274,205,696
5. Step 5: Solve for x
   x = 15,898,274,205,696/2,145,792
6. Step 6: Final answer
   x = 7,409,047.20