Finding the Third Proportional to 20,124,128 and 31,381,936

Step by Step Solution

1. Step 1: Write the proportion equation
   20,124,128 : 31,381,936 = 31,381,936 : x
2. Step 2: Convert to fraction form
   20,124,128/31,381,936 = 31,381,936/x
3. Step 3: Cross multiply
   20,124,128x = 31,381,936 × 31,381,936
4. Step 4: Simplify right side
   20,124,128x = 984,825,907,108,096
5. Step 5: Solve for x
   x = 984,825,907,108,096/20,124,128
6. Step 6: Final answer
   x = 48,937,569.23