Finding the Third Proportional to 13,971,416 and 20,870,852

Step by Step Solution

1. Step 1: Write the proportion equation
   13,971,416 : 20,870,852 = 20,870,852 : x
2. Step 2: Convert to fraction form
   13,971,416/20,870,852 = 20,870,852/x
3. Step 3: Cross multiply
   13,971,416x = 20,870,852 × 20,870,852
4. Step 4: Simplify right side
   13,971,416x = 435,592,463,205,904
5. Step 5: Solve for x
   x = 435,592,463,205,904/13,971,416
6. Step 6: Final answer
   x = 31,177,402.72