Finding the Third Proportional to 42,143,965.50 and 91,945,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,143,965.50 : 91,945,306.50 = 91,945,306.50 : x
2. Step 2: Convert to fraction form
   42,143,965.50/91,945,306.50 = 91,945,306.50/x
3. Step 3: Cross multiply
   42,143,965.50x = 91,945,306.50 × 91,945,306.50
4. Step 4: Simplify right side
   42,143,965.50x = 8,453,939,387,378,942
5. Step 5: Solve for x
   x = 8,453,939,387,378,942/42,143,965.50
6. Step 6: Final answer
   x = 200,596,675.87