Finding the Third Proportional to 911,511 and 1,987,037

Step by Step Solution

1. Step 1: Write the proportion equation
   911,511 : 1,987,037 = 1,987,037 : x
2. Step 2: Convert to fraction form
   911,511/1,987,037 = 1,987,037/x
3. Step 3: Cross multiply
   911,511x = 1,987,037 × 1,987,037
4. Step 4: Simplify right side
   911,511x = 3,948,316,039,369
5. Step 5: Solve for x
   x = 3,948,316,039,369/911,511
6. Step 6: Final answer
   x = 4,331,616.45