Finding the Third Proportional to 21,163,448 and 31,662,864

Step by Step Solution

1. Step 1: Write the proportion equation
   21,163,448 : 31,662,864 = 31,662,864 : x
2. Step 2: Convert to fraction form
   21,163,448/31,662,864 = 31,662,864/x
3. Step 3: Cross multiply
   21,163,448x = 31,662,864 × 31,662,864
4. Step 4: Simplify right side
   21,163,448x = 1,002,536,956,682,496
5. Step 5: Solve for x
   x = 1,002,536,956,682,496/21,163,448
6. Step 6: Final answer
   x = 47,371,154.11