Finding the Third Proportional to 1,118,972 and 1,687,742

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,972 : 1,687,742 = 1,687,742 : x
2. Step 2: Convert to fraction form
   1,118,972/1,687,742 = 1,687,742/x
3. Step 3: Cross multiply
   1,118,972x = 1,687,742 × 1,687,742
4. Step 4: Simplify right side
   1,118,972x = 2,848,473,058,564
5. Step 5: Solve for x
   x = 2,848,473,058,564/1,118,972
6. Step 6: Final answer
   x = 2,545,616.03