Finding the Third Proportional to 2,587,120 and 5,627,258

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587,120 : 5,627,258 = 5,627,258 : x
2. Step 2: Convert to fraction form
   2,587,120/5,627,258 = 5,627,258/x
3. Step 3: Cross multiply
   2,587,120x = 5,627,258 × 5,627,258
4. Step 4: Simplify right side
   2,587,120x = 31,666,032,598,564
5. Step 5: Solve for x
   x = 31,666,032,598,564/2,587,120
6. Step 6: Final answer
   x = 12,239,877.78