Finding the Third Proportional to 1,021,503 and 2,219,910

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,503 : 2,219,910 = 2,219,910 : x
2. Step 2: Convert to fraction form
   1,021,503/2,219,910 = 2,219,910/x
3. Step 3: Cross multiply
   1,021,503x = 2,219,910 × 2,219,910
4. Step 4: Simplify right side
   1,021,503x = 4,928,000,408,100
5. Step 5: Solve for x
   x = 4,928,000,408,100/1,021,503
6. Step 6: Final answer
   x = 4,824,264.25