Finding the Third Proportional to 5,013,944 and 7,638,420

Step by Step Solution

1. Step 1: Write the proportion equation
   5,013,944 : 7,638,420 = 7,638,420 : x
2. Step 2: Convert to fraction form
   5,013,944/7,638,420 = 7,638,420/x
3. Step 3: Cross multiply
   5,013,944x = 7,638,420 × 7,638,420
4. Step 4: Simplify right side
   5,013,944x = 58,345,460,096,400
5. Step 5: Solve for x
   x = 58,345,460,096,400/5,013,944
6. Step 6: Final answer
   x = 11,636,639.76