Finding the Third Proportional to 1,409,742 and 2,117,740

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409,742 : 2,117,740 = 2,117,740 : x
2. Step 2: Convert to fraction form
   1,409,742/2,117,740 = 2,117,740/x
3. Step 3: Cross multiply
   1,409,742x = 2,117,740 × 2,117,740
4. Step 4: Simplify right side
   1,409,742x = 4,484,822,707,600
5. Step 5: Solve for x
   x = 4,484,822,707,600/1,409,742
6. Step 6: Final answer
   x = 3,181,307.44