Finding the Third Proportional to 51,990,780 and 72,682,578

Step by Step Solution

1. Step 1: Write the proportion equation
   51,990,780 : 72,682,578 = 72,682,578 : x
2. Step 2: Convert to fraction form
   51,990,780/72,682,578 = 72,682,578/x
3. Step 3: Cross multiply
   51,990,780x = 72,682,578 × 72,682,578
4. Step 4: Simplify right side
   51,990,780x = 5,282,757,144,726,084
5. Step 5: Solve for x
   x = 5,282,757,144,726,084/51,990,780
6. Step 6: Final answer
   x = 101,609,499.70