Finding the Third Proportional to 143,056 and 307,928

Step by Step Solution

1. Step 1: Write the proportion equation
   143,056 : 307,928 = 307,928 : x
2. Step 2: Convert to fraction form
   143,056/307,928 = 307,928/x
3. Step 3: Cross multiply
   143,056x = 307,928 × 307,928
4. Step 4: Simplify right side
   143,056x = 94,819,653,184
5. Step 5: Solve for x
   x = 94,819,653,184/143,056
6. Step 6: Final answer
   x = 662,814.93