Finding the Third Proportional to 51,317,766 and 111,670,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,317,766 : 111,670,021.50 = 111,670,021.50 : x
2. Step 2: Convert to fraction form
   51,317,766/111,670,021.50 = 111,670,021.50/x
3. Step 3: Cross multiply
   51,317,766x = 111,670,021.50 × 111,670,021.50
4. Step 4: Simplify right side
   51,317,766x = 12,470,193,701,810,462
5. Step 5: Solve for x
   x = 12,470,193,701,810,462/51,317,766
6. Step 6: Final answer
   x = 242,999,543.31