Finding the Third Proportional to 2,648,037,642.75 and 5,618,859,262.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648,037,642.75 : 5,618,859,262.88 = 5,618,859,262.88 : x
2. Step 2: Convert to fraction form
   2,648,037,642.75/5,618,859,262.88 = 5,618,859,262.88/x
3. Step 3: Cross multiply
   2,648,037,642.75x = 5,618,859,262.88 × 5,618,859,262.88
4. Step 4: Simplify right side
   2,648,037,642.75x = 31,571,579,415,998,439,424
5. Step 5: Solve for x
   x = 31,571,579,415,998,439,424/2,648,037,642.75
6. Step 6: Final answer
   x = 11,922,632,407.60