Finding the Third Proportional to 1,430,256 and 2,120,632

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,256 : 2,120,632 = 2,120,632 : x
2. Step 2: Convert to fraction form
   1,430,256/2,120,632 = 2,120,632/x
3. Step 3: Cross multiply
   1,430,256x = 2,120,632 × 2,120,632
4. Step 4: Simplify right side
   1,430,256x = 4,497,080,079,424
5. Step 5: Solve for x
   x = 4,497,080,079,424/1,430,256
6. Step 6: Final answer
   x = 3,144,248.36