Finding the Third Proportional to 3,670,216 and 7,871,783

Step by Step Solution

1. Step 1: Write the proportion equation
   3,670,216 : 7,871,783 = 7,871,783 : x
2. Step 2: Convert to fraction form
   3,670,216/7,871,783 = 7,871,783/x
3. Step 3: Cross multiply
   3,670,216x = 7,871,783 × 7,871,783
4. Step 4: Simplify right side
   3,670,216x = 61,964,967,599,089
5. Step 5: Solve for x
   x = 61,964,967,599,089/3,670,216
6. Step 6: Final answer
   x = 16,883,193.69