Finding the Third Proportional to 1,015,579 and 2,171,126

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,579 : 2,171,126 = 2,171,126 : x
2. Step 2: Convert to fraction form
   1,015,579/2,171,126 = 2,171,126/x
3. Step 3: Cross multiply
   1,015,579x = 2,171,126 × 2,171,126
4. Step 4: Simplify right side
   1,015,579x = 4,713,788,107,876
5. Step 5: Solve for x
   x = 4,713,788,107,876/1,015,579
6. Step 6: Final answer
   x = 4,641,478.51