Finding the Third Proportional to 2,458,261,368 and 5,406,851,790

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458,261,368 : 5,406,851,790 = 5,406,851,790 : x
2. Step 2: Convert to fraction form
   2,458,261,368/5,406,851,790 = 5,406,851,790/x
3. Step 3: Cross multiply
   2,458,261,368x = 5,406,851,790 × 5,406,851,790
4. Step 4: Simplify right side
   2,458,261,368x = 29,234,046,279,026,204,672
5. Step 5: Solve for x
   x = 29,234,046,279,026,204,672/2,458,261,368
6. Step 6: Final answer
   x = 11,892,163,567.14