Finding the Third Proportional to 31,449,948.47 and 67,271,983.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,449,948.47 : 67,271,983.31 = 67,271,983.31 : x
2. Step 2: Convert to fraction form
   31,449,948.47/67,271,983.31 = 67,271,983.31/x
3. Step 3: Cross multiply
   31,449,948.47x = 67,271,983.31 × 67,271,983.31
4. Step 4: Simplify right side
   31,449,948.47x = 4,525,519,738,797,278
5. Step 5: Solve for x
   x = 4,525,519,738,797,278/31,449,948.47
6. Step 6: Final answer
   x = 143,895,934.94