Finding the Third Proportional to 2,508,128 and 5,487,424

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508,128 : 5,487,424 = 5,487,424 : x
2. Step 2: Convert to fraction form
   2,508,128/5,487,424 = 5,487,424/x
3. Step 3: Cross multiply
   2,508,128x = 5,487,424 × 5,487,424
4. Step 4: Simplify right side
   2,508,128x = 30,111,822,155,776
5. Step 5: Solve for x
   x = 30,111,822,155,776/2,508,128
6. Step 6: Final answer
   x = 12,005,695.94