Finding the Third Proportional to 8,886,105,709 and 18,507,709,158

Step by Step Solution

1. Step 1: Write the proportion equation
   8,886,105,709 : 18,507,709,158 = 18,507,709,158 : x
2. Step 2: Convert to fraction form
   8,886,105,709/18,507,709,158 = 18,507,709,158/x
3. Step 3: Cross multiply
   8,886,105,709x = 18,507,709,158 × 18,507,709,158
4. Step 4: Simplify right side
   8,886,105,709x = 342,535,298,277,117,067,264
5. Step 5: Solve for x
   x = 342,535,298,277,117,067,264/8,886,105,709
6. Step 6: Final answer
   x = 38,547,290,511.09