Finding the Third Proportional to 19,388,322 and 42,007,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,388,322 : 42,007,855.50 = 42,007,855.50 : x
2. Step 2: Convert to fraction form
   19,388,322/42,007,855.50 = 42,007,855.50/x
3. Step 3: Cross multiply
   19,388,322x = 42,007,855.50 × 42,007,855.50
4. Step 4: Simplify right side
   19,388,322x = 1,764,659,923,708,880.25
5. Step 5: Solve for x
   x = 1,764,659,923,708,880.25/19,388,322
6. Step 6: Final answer
   x = 91,016,640.00