Finding the Third Proportional to 31,836,928,563 and 68,146,189,020

Step by Step Solution

1. Step 1: Write the proportion equation
   31,836,928,563 : 68,146,189,020 = 68,146,189,020 : x
2. Step 2: Convert to fraction form
   31,836,928,563/68,146,189,020 = 68,146,189,020/x
3. Step 3: Cross multiply
   31,836,928,563x = 68,146,189,020 × 68,146,189,020
4. Step 4: Simplify right side
   31,836,928,563x = 4,643,903,077,949,568,450,560
5. Step 5: Solve for x
   x = 4,643,903,077,949,568,450,560/31,836,928,563
6. Step 6: Final answer
   x = 145,865,298,179.13