Finding the Third Proportional to 2,636,178 and 4,219,601

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636,178 : 4,219,601 = 4,219,601 : x
2. Step 2: Convert to fraction form
   2,636,178/4,219,601 = 4,219,601/x
3. Step 3: Cross multiply
   2,636,178x = 4,219,601 × 4,219,601
4. Step 4: Simplify right side
   2,636,178x = 17,805,032,599,201
5. Step 5: Solve for x
   x = 17,805,032,599,201/2,636,178
6. Step 6: Final answer
   x = 6,754,108.64