Finding the Third Proportional to 45,009 and 71,178

Step by Step Solution

1. Step 1: Write the proportion equation
   45,009 : 71,178 = 71,178 : x
2. Step 2: Convert to fraction form
   45,009/71,178 = 71,178/x
3. Step 3: Cross multiply
   45,009x = 71,178 × 71,178
4. Step 4: Simplify right side
   45,009x = 5,066,307,684
5. Step 5: Solve for x
   x = 5,066,307,684/45,009
6. Step 6: Final answer
   x = 112,562.10