Finding the Third Proportional to 2,356,428 and 3,603,178

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356,428 : 3,603,178 = 3,603,178 : x
2. Step 2: Convert to fraction form
   2,356,428/3,603,178 = 3,603,178/x
3. Step 3: Cross multiply
   2,356,428x = 3,603,178 × 3,603,178
4. Step 4: Simplify right side
   2,356,428x = 12,982,891,699,684
5. Step 5: Solve for x
   x = 12,982,891,699,684/2,356,428
6. Step 6: Final answer
   x = 5,509,564.35