Finding the Third Proportional to 2,458,261,323 and 5,406,851,711

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458,261,323 : 5,406,851,711 = 5,406,851,711 : x
2. Step 2: Convert to fraction form
   2,458,261,323/5,406,851,711 = 5,406,851,711/x
3. Step 3: Cross multiply
   2,458,261,323x = 5,406,851,711 × 5,406,851,711
4. Step 4: Simplify right side
   2,458,261,323x = 29,234,045,424,743,628,800
5. Step 5: Solve for x
   x = 29,234,045,424,743,628,800/2,458,261,323
6. Step 6: Final answer
   x = 11,892,163,437.31