Finding the Third Proportional to 1,418,987 and 2,126,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,987 : 2,126,402 = 2,126,402 : x
2. Step 2: Convert to fraction form
   1,418,987/2,126,402 = 2,126,402/x
3. Step 3: Cross multiply
   1,418,987x = 2,126,402 × 2,126,402
4. Step 4: Simplify right side
   1,418,987x = 4,521,585,465,604
5. Step 5: Solve for x
   x = 4,521,585,465,604/1,418,987
6. Step 6: Final answer
   x = 3,186,488.29