Finding the Third Proportional to 31,805,809,326 and 69,196,621,788

Step by Step Solution

1. Step 1: Write the proportion equation
   31,805,809,326 : 69,196,621,788 = 69,196,621,788 : x
2. Step 2: Convert to fraction form
   31,805,809,326/69,196,621,788 = 69,196,621,788/x
3. Step 3: Cross multiply
   31,805,809,326x = 69,196,621,788 × 69,196,621,788
4. Step 4: Simplify right side
   31,805,809,326x = 4,788,172,466,871,516,266,496
5. Step 5: Solve for x
   x = 4,788,172,466,871,516,266,496/31,805,809,326
6. Step 6: Final answer
   x = 150,543,959,369.00