Finding the Third Proportional to 518,539,518 and 1,140,507,823.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,539,518 : 1,140,507,823.50 = 1,140,507,823.50 : x
2. Step 2: Convert to fraction form
   518,539,518/1,140,507,823.50 = 1,140,507,823.50/x
3. Step 3: Cross multiply
   518,539,518x = 1,140,507,823.50 × 1,140,507,823.50
4. Step 4: Simplify right side
   518,539,518x = 1,300,758,095,464,707,072
5. Step 5: Solve for x
   x = 1,300,758,095,464,707,072/518,539,518
6. Step 6: Final answer
   x = 2,508,503,306.52