Finding the Third Proportional to 57,776,268 and 89,749,530

Step by Step Solution

1. Step 1: Write the proportion equation
   57,776,268 : 89,749,530 = 89,749,530 : x
2. Step 2: Convert to fraction form
   57,776,268/89,749,530 = 89,749,530/x
3. Step 3: Cross multiply
   57,776,268x = 89,749,530 × 89,749,530
4. Step 4: Simplify right side
   57,776,268x = 8,054,978,135,220,900
5. Step 5: Solve for x
   x = 8,054,978,135,220,900/57,776,268
6. Step 6: Final answer
   x = 139,416,726.18