Finding the Third Proportional to 1,129,128 and 2,421,984

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129,128 : 2,421,984 = 2,421,984 : x
2. Step 2: Convert to fraction form
   1,129,128/2,421,984 = 2,421,984/x
3. Step 3: Cross multiply
   1,129,128x = 2,421,984 × 2,421,984
4. Step 4: Simplify right side
   1,129,128x = 5,866,006,496,256
5. Step 5: Solve for x
   x = 5,866,006,496,256/1,129,128
6. Step 6: Final answer
   x = 5,195,165.20