Finding the Third Proportional to 2,146,964 and 4,387,144

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,964 : 4,387,144 = 4,387,144 : x
2. Step 2: Convert to fraction form
   2,146,964/4,387,144 = 4,387,144/x
3. Step 3: Cross multiply
   2,146,964x = 4,387,144 × 4,387,144
4. Step 4: Simplify right side
   2,146,964x = 19,247,032,476,736
5. Step 5: Solve for x
   x = 19,247,032,476,736/2,146,964
6. Step 6: Final answer
   x = 8,964,767.21