Finding the Third Proportional to 2,139,815,968 and 2,956,739,568

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,815,968 : 2,956,739,568 = 2,956,739,568 : x
2. Step 2: Convert to fraction form
   2,139,815,968/2,956,739,568 = 2,956,739,568/x
3. Step 3: Cross multiply
   2,139,815,968x = 2,956,739,568 × 2,956,739,568
4. Step 4: Simplify right side
   2,139,815,968x = 8,742,308,872,976,826,368
5. Step 5: Solve for x
   x = 8,742,308,872,976,826,368/2,139,815,968
6. Step 6: Final answer
   x = 4,085,542,403.51