Finding the Third Proportional to 2,155,188,655.69 and 4,646,779,462.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,188,655.69 : 4,646,779,462.69 = 4,646,779,462.69 : x
2. Step 2: Convert to fraction form
   2,155,188,655.69/4,646,779,462.69 = 4,646,779,462.69/x
3. Step 3: Cross multiply
   2,155,188,655.69x = 4,646,779,462.69 × 4,646,779,462.69
4. Step 4: Simplify right side
   2,155,188,655.69x = 21,592,559,374,854,332,416
5. Step 5: Solve for x
   x = 21,592,559,374,854,332,416/2,155,188,655.69
6. Step 6: Final answer
   x = 10,018,872,045.32