Finding the Third Proportional to 20,993,936 and 31,381,608

Step by Step Solution

1. Step 1: Write the proportion equation
   20,993,936 : 31,381,608 = 31,381,608 : x
2. Step 2: Convert to fraction form
   20,993,936/31,381,608 = 31,381,608/x
3. Step 3: Cross multiply
   20,993,936x = 31,381,608 × 31,381,608
4. Step 4: Simplify right side
   20,993,936x = 984,805,320,665,664
5. Step 5: Solve for x
   x = 984,805,320,665,664/20,993,936
6. Step 6: Final answer
   x = 46,909,037.00