Finding the Third Proportional to 1,012,436 and 2,138,710

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,436 : 2,138,710 = 2,138,710 : x
2. Step 2: Convert to fraction form
   1,012,436/2,138,710 = 2,138,710/x
3. Step 3: Cross multiply
   1,012,436x = 2,138,710 × 2,138,710
4. Step 4: Simplify right side
   1,012,436x = 4,574,080,464,100
5. Step 5: Solve for x
   x = 4,574,080,464,100/1,012,436
6. Step 6: Final answer
   x = 4,517,895.91