Finding the Third Proportional to 1,248,880 and 2,687,206

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,880 : 2,687,206 = 2,687,206 : x
2. Step 2: Convert to fraction form
   1,248,880/2,687,206 = 2,687,206/x
3. Step 3: Cross multiply
   1,248,880x = 2,687,206 × 2,687,206
4. Step 4: Simplify right side
   1,248,880x = 7,221,076,086,436
5. Step 5: Solve for x
   x = 7,221,076,086,436/1,248,880
6. Step 6: Final answer
   x = 5,782,041.58