Finding the Third Proportional to 2,557,989,912 and 5,566,410,126

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,989,912 : 5,566,410,126 = 5,566,410,126 : x
2. Step 2: Convert to fraction form
   2,557,989,912/5,566,410,126 = 5,566,410,126/x
3. Step 3: Cross multiply
   2,557,989,912x = 5,566,410,126 × 5,566,410,126
4. Step 4: Simplify right side
   2,557,989,912x = 30,984,921,690,835,337,216
5. Step 5: Solve for x
   x = 30,984,921,690,835,337,216/2,557,989,912
6. Step 6: Final answer
   x = 12,112,996,046.42