Finding the Third Proportional to 8,388,397,196 and 12,570,325,263

Step by Step Solution

1. Step 1: Write the proportion equation
   8,388,397,196 : 12,570,325,263 = 12,570,325,263 : x
2. Step 2: Convert to fraction form
   8,388,397,196/12,570,325,263 = 12,570,325,263/x
3. Step 3: Cross multiply
   8,388,397,196x = 12,570,325,263 × 12,570,325,263
4. Step 4: Simplify right side
   8,388,397,196x = 158,013,077,217,616,003,072
5. Step 5: Solve for x
   x = 158,013,077,217,616,003,072/8,388,397,196
6. Step 6: Final answer
   x = 18,837,100,047.31