Finding the Third Proportional to 1,015,590 and 2,171,148

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,590 : 2,171,148 = 2,171,148 : x
2. Step 2: Convert to fraction form
   1,015,590/2,171,148 = 2,171,148/x
3. Step 3: Cross multiply
   1,015,590x = 2,171,148 × 2,171,148
4. Step 4: Simplify right side
   1,015,590x = 4,713,883,637,904
5. Step 5: Solve for x
   x = 4,713,883,637,904/1,015,590
6. Step 6: Final answer
   x = 4,641,522.31