Finding the Third Proportional to 8,886,105,632.81 and 18,507,709,002.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,886,105,632.81 : 18,507,709,002.09 = 18,507,709,002.09 : x
2. Step 2: Convert to fraction form
   8,886,105,632.81/18,507,709,002.09 = 18,507,709,002.09/x
3. Step 3: Cross multiply
   8,886,105,632.81x = 18,507,709,002.09 × 18,507,709,002.09
4. Step 4: Simplify right side
   8,886,105,632.81x = 342,535,292,506,191,364,096
5. Step 5: Solve for x
   x = 342,535,292,506,191,364,096/8,886,105,632.81
6. Step 6: Final answer
   x = 38,547,290,192.16