Finding the Third Proportional to 4,752,351 and 7,128,648

Step by Step Solution

1. Step 1: Write the proportion equation
   4,752,351 : 7,128,648 = 7,128,648 : x
2. Step 2: Convert to fraction form
   4,752,351/7,128,648 = 7,128,648/x
3. Step 3: Cross multiply
   4,752,351x = 7,128,648 × 7,128,648
4. Step 4: Simplify right side
   4,752,351x = 50,817,622,307,904
5. Step 5: Solve for x
   x = 50,817,622,307,904/4,752,351
6. Step 6: Final answer
   x = 10,693,154.25