Finding the Third Proportional to 91,914,902 and 199,147,912

Step by Step Solution

1. Step 1: Write the proportion equation
   91,914,902 : 199,147,912 = 199,147,912 : x
2. Step 2: Convert to fraction form
   91,914,902/199,147,912 = 199,147,912/x
3. Step 3: Cross multiply
   91,914,902x = 199,147,912 × 199,147,912
4. Step 4: Simplify right side
   91,914,902x = 39,659,890,853,959,744
5. Step 5: Solve for x
   x = 39,659,890,853,959,744/91,914,902
6. Step 6: Final answer
   x = 431,484,884.29