Finding the Third Proportional to 2,156,646 and 4,616,238

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,646 : 4,616,238 = 4,616,238 : x
2. Step 2: Convert to fraction form
   2,156,646/4,616,238 = 4,616,238/x
3. Step 3: Cross multiply
   2,156,646x = 4,616,238 × 4,616,238
4. Step 4: Simplify right side
   2,156,646x = 21,309,653,272,644
5. Step 5: Solve for x
   x = 21,309,653,272,644/2,156,646
6. Step 6: Final answer
   x = 9,880,923.10