Finding the Third Proportional to 518,539,494.49 and 1,140,507,774.31

Step by Step Solution

1. Step 1: Write the proportion equation
   518,539,494.49 : 1,140,507,774.31 = 1,140,507,774.31 : x
2. Step 2: Convert to fraction form
   518,539,494.49/1,140,507,774.31 = 1,140,507,774.31/x
3. Step 3: Cross multiply
   518,539,494.49x = 1,140,507,774.31 × 1,140,507,774.31
4. Step 4: Simplify right side
   518,539,494.49x = 1,300,757,983,269,989,632
5. Step 5: Solve for x
   x = 1,300,757,983,269,989,632/518,539,494.49
6. Step 6: Final answer
   x = 2,508,503,203.88