Finding the Third Proportional to 987,000 and 2,143,122

Step by Step Solution

1. Step 1: Write the proportion equation
   987,000 : 2,143,122 = 2,143,122 : x
2. Step 2: Convert to fraction form
   987,000/2,143,122 = 2,143,122/x
3. Step 3: Cross multiply
   987,000x = 2,143,122 × 2,143,122
4. Step 4: Simplify right side
   987,000x = 4,592,971,906,884
5. Step 5: Solve for x
   x = 4,592,971,906,884/987,000
6. Step 6: Final answer
   x = 4,653,466.98