Finding the Third Proportional to 1,418,274 and 2,128,862

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,274 : 2,128,862 = 2,128,862 : x
2. Step 2: Convert to fraction form
   1,418,274/2,128,862 = 2,128,862/x
3. Step 3: Cross multiply
   1,418,274x = 2,128,862 × 2,128,862
4. Step 4: Simplify right side
   1,418,274x = 4,532,053,415,044
5. Step 5: Solve for x
   x = 4,532,053,415,044/1,418,274
6. Step 6: Final answer
   x = 3,195,470.98