Finding the Third Proportional to 987,848 and 2,156,488

Step by Step Solution

1. Step 1: Write the proportion equation
   987,848 : 2,156,488 = 2,156,488 : x
2. Step 2: Convert to fraction form
   987,848/2,156,488 = 2,156,488/x
3. Step 3: Cross multiply
   987,848x = 2,156,488 × 2,156,488
4. Step 4: Simplify right side
   987,848x = 4,650,440,494,144
5. Step 5: Solve for x
   x = 4,650,440,494,144/987,848
6. Step 6: Final answer
   x = 4,707,647.83