Finding the Third Proportional to 8,388,397,192.50 and 12,570,325,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,388,397,192.50 : 12,570,325,258.50 = 12,570,325,258.50 : x
2. Step 2: Convert to fraction form
   8,388,397,192.50/12,570,325,258.50 = 12,570,325,258.50/x
3. Step 3: Cross multiply
   8,388,397,192.50x = 12,570,325,258.50 × 12,570,325,258.50
4. Step 4: Simplify right side
   8,388,397,192.50x = 158,013,077,104,483,106,816
5. Step 5: Solve for x
   x = 158,013,077,104,483,106,816/8,388,397,192.50
6. Step 6: Final answer
   x = 18,837,100,041.68