Finding the Third Proportional to 91,844,842 and 198,300,212

Step by Step Solution

1. Step 1: Write the proportion equation
   91,844,842 : 198,300,212 = 198,300,212 : x
2. Step 2: Convert to fraction form
   91,844,842/198,300,212 = 198,300,212/x
3. Step 3: Cross multiply
   91,844,842x = 198,300,212 × 198,300,212
4. Step 4: Simplify right side
   91,844,842x = 39,322,974,079,244,944
5. Step 5: Solve for x
   x = 39,322,974,079,244,944/91,844,842
6. Step 6: Final answer
   x = 428,145,699.02