Finding the Third Proportional to 1,149,642 and 2,418,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,149,642 : 2,418,380 = 2,418,380 : x
2. Step 2: Convert to fraction form
   1,149,642/2,418,380 = 2,418,380/x
3. Step 3: Cross multiply
   1,149,642x = 2,418,380 × 2,418,380
4. Step 4: Simplify right side
   1,149,642x = 5,848,561,824,400
5. Step 5: Solve for x
   x = 5,848,561,824,400/1,149,642
6. Step 6: Final answer
   x = 5,087,289.63