Finding the Third Proportional to 1,865,816 and 3,991,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,816 : 3,991,008 = 3,991,008 : x
2. Step 2: Convert to fraction form
   1,865,816/3,991,008 = 3,991,008/x
3. Step 3: Cross multiply
   1,865,816x = 3,991,008 × 3,991,008
4. Step 4: Simplify right side
   1,865,816x = 15,928,144,856,064
5. Step 5: Solve for x
   x = 15,928,144,856,064/1,865,816
6. Step 6: Final answer
   x = 8,536,825.10