Finding the Third Proportional to 16,687,990 and 34,654,971

Step by Step Solution

1. Step 1: Write the proportion equation
   16,687,990 : 34,654,971 = 34,654,971 : x
2. Step 2: Convert to fraction form
   16,687,990/34,654,971 = 34,654,971/x
3. Step 3: Cross multiply
   16,687,990x = 34,654,971 × 34,654,971
4. Step 4: Simplify right side
   16,687,990x = 1,200,967,015,010,841
5. Step 5: Solve for x
   x = 1,200,967,015,010,841/16,687,990
6. Step 6: Final answer
   x = 71,965,947.67