Finding the Third Proportional to 987,210 and 1,443,415

Step by Step Solution

1. Step 1: Write the proportion equation
   987,210 : 1,443,415 = 1,443,415 : x
2. Step 2: Convert to fraction form
   987,210/1,443,415 = 1,443,415/x
3. Step 3: Cross multiply
   987,210x = 1,443,415 × 1,443,415
4. Step 4: Simplify right side
   987,210x = 2,083,446,862,225
5. Step 5: Solve for x
   x = 2,083,446,862,225/987,210
6. Step 6: Final answer
   x = 2,110,439.38