Finding the Third Proportional to 988,878 and 2,117,724

Step by Step Solution

1. Step 1: Write the proportion equation
   988,878 : 2,117,724 = 2,117,724 : x
2. Step 2: Convert to fraction form
   988,878/2,117,724 = 2,117,724/x
3. Step 3: Cross multiply
   988,878x = 2,117,724 × 2,117,724
4. Step 4: Simplify right side
   988,878x = 4,484,754,940,176
5. Step 5: Solve for x
   x = 4,484,754,940,176/988,878
6. Step 6: Final answer
   x = 4,535,195.38