Finding the Third Proportional to 4,072,390 and 8,041,962

Step by Step Solution

1. Step 1: Write the proportion equation
   4,072,390 : 8,041,962 = 8,041,962 : x
2. Step 2: Convert to fraction form
   4,072,390/8,041,962 = 8,041,962/x
3. Step 3: Cross multiply
   4,072,390x = 8,041,962 × 8,041,962
4. Step 4: Simplify right side
   4,072,390x = 64,673,152,809,444
5. Step 5: Solve for x
   x = 64,673,152,809,444/4,072,390
6. Step 6: Final answer
   x = 15,880,883.91