Finding the Third Proportional to 1,865,820 and 3,991,016

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,820 : 3,991,016 = 3,991,016 : x
2. Step 2: Convert to fraction form
   1,865,820/3,991,016 = 3,991,016/x
3. Step 3: Cross multiply
   1,865,820x = 3,991,016 × 3,991,016
4. Step 4: Simplify right side
   1,865,820x = 15,928,208,712,256
5. Step 5: Solve for x
   x = 15,928,208,712,256/1,865,820
6. Step 6: Final answer
   x = 8,536,841.02