Finding the Third Proportional to 21,682,137 and 31,707,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,682,137 : 31,707,454.50 = 31,707,454.50 : x
2. Step 2: Convert to fraction form
   21,682,137/31,707,454.50 = 31,707,454.50/x
3. Step 3: Cross multiply
   21,682,137x = 31,707,454.50 × 31,707,454.50
4. Step 4: Simplify right side
   21,682,137x = 1,005,362,670,869,570.25
5. Step 5: Solve for x
   x = 1,005,362,670,869,570.25/21,682,137
6. Step 6: Final answer
   x = 46,368,246.40