Finding the Third Proportional to 2,572,020 and 5,586,840

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572,020 : 5,586,840 = 5,586,840 : x
2. Step 2: Convert to fraction form
   2,572,020/5,586,840 = 5,586,840/x
3. Step 3: Cross multiply
   2,572,020x = 5,586,840 × 5,586,840
4. Step 4: Simplify right side
   2,572,020x = 31,212,781,185,600
5. Step 5: Solve for x
   x = 31,212,781,185,600/2,572,020
6. Step 6: Final answer
   x = 12,135,512.63