Finding the Third Proportional to 1,865,398 and 4,016,190

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865,398 : 4,016,190 = 4,016,190 : x
2. Step 2: Convert to fraction form
   1,865,398/4,016,190 = 4,016,190/x
3. Step 3: Cross multiply
   1,865,398x = 4,016,190 × 4,016,190
4. Step 4: Simplify right side
   1,865,398x = 16,129,782,116,100
5. Step 5: Solve for x
   x = 16,129,782,116,100/1,865,398
6. Step 6: Final answer
   x = 8,646,831.46