Finding the Third Proportional to 2,357,392,686 and 3,928,751,028

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357,392,686 : 3,928,751,028 = 3,928,751,028 : x
2. Step 2: Convert to fraction form
   2,357,392,686/3,928,751,028 = 3,928,751,028/x
3. Step 3: Cross multiply
   2,357,392,686x = 3,928,751,028 × 3,928,751,028
4. Step 4: Simplify right side
   2,357,392,686x = 15,435,084,640,011,057,152
5. Step 5: Solve for x
   x = 15,435,084,640,011,057,152/2,357,392,686
6. Step 6: Final answer
   x = 6,547,523,767.12