Finding the Third Proportional to 2,458,261,332 and 5,406,851,728

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458,261,332 : 5,406,851,728 = 5,406,851,728 : x
2. Step 2: Convert to fraction form
   2,458,261,332/5,406,851,728 = 5,406,851,728/x
3. Step 3: Cross multiply
   2,458,261,332x = 5,406,851,728 × 5,406,851,728
4. Step 4: Simplify right side
   2,458,261,332x = 29,234,045,608,576,585,728
5. Step 5: Solve for x
   x = 29,234,045,608,576,585,728/2,458,261,332
6. Step 6: Final answer
   x = 11,892,163,468.56