Finding the Third Proportional to 4,173,636 and 5,590,422

Step by Step Solution

1. Step 1: Write the proportion equation
   4,173,636 : 5,590,422 = 5,590,422 : x
2. Step 2: Convert to fraction form
   4,173,636/5,590,422 = 5,590,422/x
3. Step 3: Cross multiply
   4,173,636x = 5,590,422 × 5,590,422
4. Step 4: Simplify right side
   4,173,636x = 31,252,818,138,084
5. Step 5: Solve for x
   x = 31,252,818,138,084/4,173,636
6. Step 6: Final answer
   x = 7,488,151.37