Finding the Third Proportional to 4,188,252 and 9,118,131

Step by Step Solution

1. Step 1: Write the proportion equation
   4,188,252 : 9,118,131 = 9,118,131 : x
2. Step 2: Convert to fraction form
   4,188,252/9,118,131 = 9,118,131/x
3. Step 3: Cross multiply
   4,188,252x = 9,118,131 × 9,118,131
4. Step 4: Simplify right side
   4,188,252x = 83,140,312,933,161
5. Step 5: Solve for x
   x = 83,140,312,933,161/4,188,252
6. Step 6: Final answer
   x = 19,850,838.23