Finding the Third Proportional to 1,991,216 and 4,369,504

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991,216 : 4,369,504 = 4,369,504 : x
2. Step 2: Convert to fraction form
   1,991,216/4,369,504 = 4,369,504/x
3. Step 3: Cross multiply
   1,991,216x = 4,369,504 × 4,369,504
4. Step 4: Simplify right side
   1,991,216x = 19,092,565,206,016
5. Step 5: Solve for x
   x = 19,092,565,206,016/1,991,216
6. Step 6: Final answer
   x = 9,588,394.83