Finding the Third Proportional to 109,388 and 143,634

Step by Step Solution

1. Step 1: Write the proportion equation
   109,388 : 143,634 = 143,634 : x
2. Step 2: Convert to fraction form
   109,388/143,634 = 143,634/x
3. Step 3: Cross multiply
   109,388x = 143,634 × 143,634
4. Step 4: Simplify right side
   109,388x = 20,630,725,956
5. Step 5: Solve for x
   x = 20,630,725,956/109,388
6. Step 6: Final answer
   x = 188,601.36