Finding the Third Proportional to 5,387,196,925 and 12,586,922,819

Step by Step Solution

1. Step 1: Write the proportion equation
   5,387,196,925 : 12,586,922,819 = 12,586,922,819 : x
2. Step 2: Convert to fraction form
   5,387,196,925/12,586,922,819 = 12,586,922,819/x
3. Step 3: Cross multiply
   5,387,196,925x = 12,586,922,819 × 12,586,922,819
4. Step 4: Simplify right side
   5,387,196,925x = 158,430,626,051,462,922,240
5. Step 5: Solve for x
   x = 158,430,626,051,462,922,240/5,387,196,925
6. Step 6: Final answer
   x = 29,408,731,155.95