Finding the Third Proportional to 143,243 and 303,560.88

Step by Step Solution

1. Step 1: Write the proportion equation
   143,243 : 303,560.88 = 303,560.88 : x
2. Step 2: Convert to fraction form
   143,243/303,560.88 = 303,560.88/x
3. Step 3: Cross multiply
   143,243x = 303,560.88 × 303,560.88
4. Step 4: Simplify right side
   143,243x = 92,149,204,830.77
5. Step 5: Solve for x
   x = 92,149,204,830.77/143,243
6. Step 6: Final answer
   x = 643,306.86