Finding the Third Proportional to 4,173,626 and 5,590,407

Step by Step Solution

1. Step 1: Write the proportion equation
   4,173,626 : 5,590,407 = 5,590,407 : x
2. Step 2: Convert to fraction form
   4,173,626/5,590,407 = 5,590,407/x
3. Step 3: Cross multiply
   4,173,626x = 5,590,407 × 5,590,407
4. Step 4: Simplify right side
   4,173,626x = 31,252,650,425,649
5. Step 5: Solve for x
   x = 31,252,650,425,649/4,173,626
6. Step 6: Final answer
   x = 7,488,129.13