Finding the Third Proportional to 91,007,874 and 196,560,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,007,874 : 196,560,571.50 = 196,560,571.50 : x
2. Step 2: Convert to fraction form
   91,007,874/196,560,571.50 = 196,560,571.50/x
3. Step 3: Cross multiply
   91,007,874x = 196,560,571.50 × 196,560,571.50
4. Step 4: Simplify right side
   91,007,874x = 38,636,058,268,406,616
5. Step 5: Solve for x
   x = 38,636,058,268,406,616/91,007,874
6. Step 6: Final answer
   x = 424,535,334.91