Finding the Third Proportional to 21,033,720 and 31,466,538

Step by Step Solution

1. Step 1: Write the proportion equation
   21,033,720 : 31,466,538 = 31,466,538 : x
2. Step 2: Convert to fraction form
   21,033,720/31,466,538 = 31,466,538/x
3. Step 3: Cross multiply
   21,033,720x = 31,466,538 × 31,466,538
4. Step 4: Simplify right side
   21,033,720x = 990,143,013,705,444
5. Step 5: Solve for x
   x = 990,143,013,705,444/21,033,720
6. Step 6: Final answer
   x = 47,074,079.80