Finding the Third Proportional to 987,844 and 2,156,480

Step by Step Solution

1. Step 1: Write the proportion equation
   987,844 : 2,156,480 = 2,156,480 : x
2. Step 2: Convert to fraction form
   987,844/2,156,480 = 2,156,480/x
3. Step 3: Cross multiply
   987,844x = 2,156,480 × 2,156,480
4. Step 4: Simplify right side
   987,844x = 4,650,405,990,400
5. Step 5: Solve for x
   x = 4,650,405,990,400/987,844
6. Step 6: Final answer
   x = 4,707,631.96