Finding the Third Proportional to 71,388 and 105,003

Step by Step Solution

1. Step 1: Write the proportion equation
   71,388 : 105,003 = 105,003 : x
2. Step 2: Convert to fraction form
   71,388/105,003 = 105,003/x
3. Step 3: Cross multiply
   71,388x = 105,003 × 105,003
4. Step 4: Simplify right side
   71,388x = 11,025,630,009
5. Step 5: Solve for x
   x = 11,025,630,009/71,388
6. Step 6: Final answer
   x = 154,446.55