Finding the Third Proportional to 1,015,578 and 2,171,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,578 : 2,171,124 = 2,171,124 : x
2. Step 2: Convert to fraction form
   1,015,578/2,171,124 = 2,171,124/x
3. Step 3: Cross multiply
   1,015,578x = 2,171,124 × 2,171,124
4. Step 4: Simplify right side
   1,015,578x = 4,713,779,423,376
5. Step 5: Solve for x
   x = 4,713,779,423,376/1,015,578
6. Step 6: Final answer
   x = 4,641,474.53