Finding the Third Proportional to 65,486,900 and 142,591,837

Step by Step Solution

1. Step 1: Write the proportion equation
   65,486,900 : 142,591,837 = 142,591,837 : x
2. Step 2: Convert to fraction form
   65,486,900/142,591,837 = 142,591,837/x
3. Step 3: Cross multiply
   65,486,900x = 142,591,837 × 142,591,837
4. Step 4: Simplify right side
   65,486,900x = 20,332,431,979,034,568
5. Step 5: Solve for x
   x = 20,332,431,979,034,568/65,486,900
6. Step 6: Final answer
   x = 310,480,905.02