Finding the Third Proportional to 21,720,417 and 31,870,558.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,720,417 : 31,870,558.50 = 31,870,558.50 : x
2. Step 2: Convert to fraction form
   21,720,417/31,870,558.50 = 31,870,558.50/x
3. Step 3: Cross multiply
   21,720,417x = 31,870,558.50 × 31,870,558.50
4. Step 4: Simplify right side
   21,720,417x = 1,015,732,499,101,922.25
5. Step 5: Solve for x
   x = 1,015,732,499,101,922.25/21,720,417
6. Step 6: Final answer
   x = 46,763,950.21