Finding the Third Proportional to 1,278,423,850.50 and 2,986,976,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,423,850.50 : 2,986,976,020.50 = 2,986,976,020.50 : x
2. Step 2: Convert to fraction form
   1,278,423,850.50/2,986,976,020.50 = 2,986,976,020.50/x
3. Step 3: Cross multiply
   1,278,423,850.50x = 2,986,976,020.50 × 2,986,976,020.50
4. Step 4: Simplify right side
   1,278,423,850.50x = 8,922,025,747,042,016,256
5. Step 5: Solve for x
   x = 8,922,025,747,042,016,256/1,278,423,850.50
6. Step 6: Final answer
   x = 6,978,926,232.92