Finding the Third Proportional to 2,489,510 and 5,460,940

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489,510 : 5,460,940 = 5,460,940 : x
2. Step 2: Convert to fraction form
   2,489,510/5,460,940 = 5,460,940/x
3. Step 3: Cross multiply
   2,489,510x = 5,460,940 × 5,460,940
4. Step 4: Simplify right side
   2,489,510x = 29,821,865,683,600
5. Step 5: Solve for x
   x = 29,821,865,683,600/2,489,510
6. Step 6: Final answer
   x = 11,979,010.20