Finding the Third Proportional to 65,486,892 and 142,591,818

Step by Step Solution

1. Step 1: Write the proportion equation
   65,486,892 : 142,591,818 = 142,591,818 : x
2. Step 2: Convert to fraction form
   65,486,892/142,591,818 = 142,591,818/x
3. Step 3: Cross multiply
   65,486,892x = 142,591,818 × 142,591,818
4. Step 4: Simplify right side
   65,486,892x = 20,332,426,560,545,124
5. Step 5: Solve for x
   x = 20,332,426,560,545,124/65,486,892
6. Step 6: Final answer
   x = 310,480,860.21