Finding the Third Proportional to 51,739,716 and 86,227,670

Step by Step Solution

1. Step 1: Write the proportion equation
   51,739,716 : 86,227,670 = 86,227,670 : x
2. Step 2: Convert to fraction form
   51,739,716/86,227,670 = 86,227,670/x
3. Step 3: Cross multiply
   51,739,716x = 86,227,670 × 86,227,670
4. Step 4: Simplify right side
   51,739,716x = 7,435,211,073,628,900
5. Step 5: Solve for x
   x = 7,435,211,073,628,900/51,739,716
6. Step 6: Final answer
   x = 143,704,133.85