Finding the Third Proportional to 1,071,436 and 2,231,630

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,436 : 2,231,630 = 2,231,630 : x
2. Step 2: Convert to fraction form
   1,071,436/2,231,630 = 2,231,630/x
3. Step 3: Cross multiply
   1,071,436x = 2,231,630 × 2,231,630
4. Step 4: Simplify right side
   1,071,436x = 4,980,172,456,900
5. Step 5: Solve for x
   x = 4,980,172,456,900/1,071,436
6. Step 6: Final answer
   x = 4,648,128.73