Finding the Third Proportional to 987,016 and 2,143,156

Step by Step Solution

1. Step 1: Write the proportion equation
   987,016 : 2,143,156 = 2,143,156 : x
2. Step 2: Convert to fraction form
   987,016/2,143,156 = 2,143,156/x
3. Step 3: Cross multiply
   987,016x = 2,143,156 × 2,143,156
4. Step 4: Simplify right side
   987,016x = 4,593,117,640,336
5. Step 5: Solve for x
   x = 4,593,117,640,336/987,016
6. Step 6: Final answer
   x = 4,653,539.19