Finding the Third Proportional to 16,922,520 and 25,780,356

Step by Step Solution

1. Step 1: Write the proportion equation
   16,922,520 : 25,780,356 = 25,780,356 : x
2. Step 2: Convert to fraction form
   16,922,520/25,780,356 = 25,780,356/x
3. Step 3: Cross multiply
   16,922,520x = 25,780,356 × 25,780,356
4. Step 4: Simplify right side
   16,922,520x = 664,626,755,486,736
5. Step 5: Solve for x
   x = 664,626,755,486,736/16,922,520
6. Step 6: Final answer
   x = 39,274,691.68