Finding the Third Proportional to 20,731,832 and 42,788,496

Step by Step Solution

1. Step 1: Write the proportion equation
   20,731,832 : 42,788,496 = 42,788,496 : x
2. Step 2: Convert to fraction form
   20,731,832/42,788,496 = 42,788,496/x
3. Step 3: Cross multiply
   20,731,832x = 42,788,496 × 42,788,496
4. Step 4: Simplify right side
   20,731,832x = 1,830,855,389,942,016
5. Step 5: Solve for x
   x = 1,830,855,389,942,016/20,731,832
6. Step 6: Final answer
   x = 88,311,317.11