Finding the Third Proportional to 551,068,942.50 and 1,189,800,978

Step by Step Solution

1. Step 1: Write the proportion equation
   551,068,942.50 : 1,189,800,978 = 1,189,800,978 : x
2. Step 2: Convert to fraction form
   551,068,942.50/1,189,800,978 = 1,189,800,978/x
3. Step 3: Cross multiply
   551,068,942.50x = 1,189,800,978 × 1,189,800,978
4. Step 4: Simplify right side
   551,068,942.50x = 1,415,626,367,249,756,416
5. Step 5: Solve for x
   x = 1,415,626,367,249,756,416/551,068,942.50
6. Step 6: Final answer
   x = 2,568,873,435.01