Finding the Third Proportional to 5,013,953 and 7,638,434

Step by Step Solution

1. Step 1: Write the proportion equation
   5,013,953 : 7,638,434 = 7,638,434 : x
2. Step 2: Convert to fraction form
   5,013,953/7,638,434 = 7,638,434/x
3. Step 3: Cross multiply
   5,013,953x = 7,638,434 × 7,638,434
4. Step 4: Simplify right side
   5,013,953x = 58,345,673,972,356
5. Step 5: Solve for x
   x = 58,345,673,972,356/5,013,953
6. Step 6: Final answer
   x = 11,636,661.53