Finding the Third Proportional to 1,290,113,775 and 1,992,202,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,113,775 : 1,992,202,447.50 = 1,992,202,447.50 : x
2. Step 2: Convert to fraction form
   1,290,113,775/1,992,202,447.50 = 1,992,202,447.50/x
3. Step 3: Cross multiply
   1,290,113,775x = 1,992,202,447.50 × 1,992,202,447.50
4. Step 4: Simplify right side
   1,290,113,775x = 3,968,870,591,824,990,208
5. Step 5: Solve for x
   x = 3,968,870,591,824,990,208/1,290,113,775
6. Step 6: Final answer
   x = 3,076,372,540.73