Finding the Third Proportional to 4,542,073 and 9,966,942

Step by Step Solution

1. Step 1: Write the proportion equation
   4,542,073 : 9,966,942 = 9,966,942 : x
2. Step 2: Convert to fraction form
   4,542,073/9,966,942 = 9,966,942/x
3. Step 3: Cross multiply
   4,542,073x = 9,966,942 × 9,966,942
4. Step 4: Simplify right side
   4,542,073x = 99,339,932,831,364
5. Step 5: Solve for x
   x = 99,339,932,831,364/4,542,073
6. Step 6: Final answer
   x = 21,871,055.98