Finding the Third Proportional to 1,128,521 and 2,434,189

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,521 : 2,434,189 = 2,434,189 : x
2. Step 2: Convert to fraction form
   1,128,521/2,434,189 = 2,434,189/x
3. Step 3: Cross multiply
   1,128,521x = 2,434,189 × 2,434,189
4. Step 4: Simplify right side
   1,128,521x = 5,925,276,087,721
5. Step 5: Solve for x
   x = 5,925,276,087,721/1,128,521
6. Step 6: Final answer
   x = 5,250,479.24