Finding the Third Proportional to 998,492 and 2,187,043

Step by Step Solution

1. Step 1: Write the proportion equation
   998,492 : 2,187,043 = 2,187,043 : x
2. Step 2: Convert to fraction form
   998,492/2,187,043 = 2,187,043/x
3. Step 3: Cross multiply
   998,492x = 2,187,043 × 2,187,043
4. Step 4: Simplify right side
   998,492x = 4,783,157,083,849
5. Step 5: Solve for x
   x = 4,783,157,083,849/998,492
6. Step 6: Final answer
   x = 4,790,380.98